'94 accord transmition issues?
 

I bought a Honda accord '94 with an automatic transmition about 4 months ago. It had been sitting a while, but mechanically it looked sound and only had 140,000 miles on it. I got it for $1,700 after talking them down a lot.
Recently the car started smoking badly from the exhaust when I would start it up, then also just a bit under the hood. I figured it was time to get the oil changed so I took it in. They told me it was really dirty so I paid the extra $20 to get it extra cleaned out and all in working order. They also told me my transmition fluid was burned and sludgy and were going to charge me $120 to do a flush and fill. I said I would do it myself. Drove it home fine, didn't smoke at all.
Then today I went to drive to work and my car would not go over 10mph, the gas pedal seemed hard to push down, and it was revving at around 2rpm. I turned around and shut it off when it proceeded to make a repetitive clanking noise from under the backside of the car.
I had a friend of mine come and take a look at it tonight, he checked the tranny fluid and said he can't even tell there's any in there whatsoever. I bought 3 quarts of the Honda ATF dw1 and we're going to pour that in tomorrow unless it could be the timing belt or something else?
I don't know a whole lot about cars as you can probably tell from this post, but any advice would be really appreciated. I'm not putting more into the car than I payed for it so I'll just be parting it out if I need a new transmition...which is a shame because it's my first car and I'd like to see it last.
Thanks!
-Chloe

I can get you onefor aboutv 15o to 200.

doesn't sound like a timing belt to me. would make engine not run



welcome to forum, though

Does the CEL or D4 light come on at any point?

If the "place" told you the trans fluid looked bad, I'd buy at least three more qts. Pull the trans drain plug, clean it, and let it drain what it can. Then re-fill to the proper level, check the level using the proper method. See what you have from there.