I have a bose ta 1 theater amp i need adapters and wires to connect subwoofer and center speaker and the surround sound speakers where can i buy them or how can i hook it up

You have lost the sponge roll surround of your subwoofer ( suspension ). Its known as foam rot.
Either you can buy new woofer drivers for the subwoofer or repair the surround alone. Kits are available. But you will need some technical skill.Check out this link.
http://popular.ebay.com/consumer-electronics/bose-speaker/bose-speaker-repair.htm

This all depends on some unknown regarding your PC and its hardware and software sound capabilities. At a minimum it probably has a headphone output. That can be adapted to feed an RCA cable pair for standard stereo to an amp or receiver.

The Bose AM5iii is just a speaker system. It needs an amp or receiver to produce the power to drive it. Most PC's are made to directly power only headphones or self-powered speakers.

If your PC has a sound card with Digital Audio Out (usually RCA-looking coaxial SP/DIF); or Audio Line Out connections (usually 1/8" and color-coded for Front L and R; Surround L and R; and Center / Sub), you COULD run those to an appropriate multichannel amplifer or receiver and let IT do the speaker thing for you.

Bottom line: you need intervening amplification to use the Bose AM5iii on a PC.

Usually the LFE out is only a line out and is not amplified in any way, so first of all is your subwoofer self amplified or not? Cause if not, the LFE output won't be of much use to you. So if it's not self amplified you need an new amplifier to put between the receiver and the subwoofer. Any amp that supports RCA line-in input will do. Even a car stereo amplifier will work provided you can get a 12volt power supply to run it in the house. If the subwoofer is self amplified though, then all you need is to make an adapter cause none are readily available in stores to go from a RCA connector to 2 wires. You can buy a virgin RCA connector that you can wire yourself at The Source, Circuit City, or any electronics store you have locally, or if you have an old RCA to RCA wire you don't need anymore, you can just cut it in half, strip the 2 wires and you got you adapter right there.

your tv might have aux out on the back, I would use that first.
IF NOT, then you will need to use the cable box.  Insert the red and white plugs at the other end of  this cable into the AUDIO IN TV or cable box connectors on the 
media center. 
Be sure to match red to red and white to white. 
3. Use your TV remote control to turn the TV speakers 
down to minimum volume. 
This prevents the echo effect of audio playing 
through both the TV speakers and your 3•2•1® 
system speakers. 

By all-in-one amplifier that handles the surround I think you mean all-in-one receiver or preamp. Amps are just big dumb muscular power supplies for speakers.

The source control and digital decoding could be handled by a modern AV receiver with multichannel analog outputs for driving separate amps or you could get a digital AV preamplifier/control unit functionally like this Adcom. Prepare for sticker shock.

http://hdtvdreams.com/Adcom-GTP-870HD-7.1-Multi-Channel-Processor/Preamplifier-GTP870HD.aspx

Understand that EACH PAIR of Bose 901's will require its own DEDICATED two channels of amplification AND someplace to jack in its Active Equalizer - between the line level source and the power amp.

Conventional speakers can probably run off the receiver's amplifiers since they don't/can't/must not have the Bose Active EQ in line with them.

Having a single pair of 901's plus a passive subwoofer or two in the same room for accurate 6- or 7.1 surround would require at least four stereo amps or some combination that adds up to 8 channels.

In my own system I have a Pioneer VSX-36TX Receiver (with 5 potential channels of amplification for Left, Right, Center, two Surrounds) doing light duty as the control and routing center but ONLY driving the Center (two Kenwood 777's) and Surround speakers (Bose 301's). I have a Carver 5-channel amp pushing the Bose 901 Front speakers (100Wx2), two dbx Subwoofers (110Wx1) and the Bose 301 Rear Surround speakers (60Wx1).

You could probably get by with a powerful 2-, 3- or 4-channel amplifier to push the 901's and subwoofer(s) as I did. It's the cheapest way out if you get a decent AV receiver. Once you set up the levels and delays the receiver does all the thinking and controlling for you.

If you're saying you hooked the Bose speakers directly to the Yamaha's amp instead of the prescribed way through their own bass module - they're cooked.

Sounds like the rear volume is just turned down. Cant be the amp if the front and subs are working

No it won't be like surround sound, but you'll have the next best thing: a nice, powerful, natural Hi-Fi sound. I have a 46 inch 1080p Sony connected to a Sony Blu-Ray and Bose Cinemate Speakers. No complicated rear speakers wiring, no awkward center speaker to hide. The only drawback is that Bose doesn't have (yet) a code to operate the Blu-ray player with the Cinemate remote control.

Hope this helps to make your decision.

sell your bose system and buy a real home theater surround sound system with a real subwoofer and not a Bose "Bass Module"! Problem Solved!