Sorry to be so blunt, but it's going to fail again.

Replace it with a manual trans if at all possible and save yourself the hassle, money, and aggrivation.

You can pick up the manual trans parts cheap over at www.neons.org, and a good five speed will run you $50-$125, ready to install. You'll need a manual trans PCM, too, but those are not hard to come by either.

Having been through a four-month battle with a GM 4L60E and never winning, I swapped in a T-5 manual and no problems since. I know not everybody can and/or wants to do such a swap, by it my experience, once an auto trans is rebuilt and fails again, it's time to cut your losses.

If you're intent on keeping the auto trans, find a good used one on www.car-part.com or over at www.neons.org and swap it in. There are always people parting out cars, ans parts for these cars sell cheap...since they were cheap cars to begin with.