"E" warning followup

[anna]

Followup to the "E" warning - steady E, not flashing.

We took our newly purchased , under 8000 miles, 03 t-bird to the dealer (not the one we bought it from) and they did the diagnostic test on it, and said yes, it has transmission problems. We are supposed to take it in next week for an estimate on the "fix".
I'm sick because I figure the dealer we bought it from probably knew about this problem, but did not inform us about it. And we thought with a car having that low mileage, we did not need the $2000 warranty on it. Wrong move.
We did not haggle them on the price, and paid top dollar for it. So here we are......less than 3 weeks having it, and now this.

So my question is.....has anyone had the "E" fixed and what should be the approximate cost we should expect???? Does the "fix" really fix it???? or will it be an ongoing problem??? Thanks for your help.
anna