Salespeople may have said the transmission was fixed in 1998, but I know two people with newer models (1999 and 2000) who have already had transmission problems. The owner of the latter model is suing DaimlerChrysler under the New Jersey lemon law at the moment. And DaimlerChrysler made major changes to the differential component of the 41TE and 42LE transaxles (the former used in most FWD transverse cars and minivans, and the latter in the FWD longitudinal LH design) partway through the 2000 model year - so not all the problems were fixed before that point. The newer designs (2000+) require yet another different type of fluid, something DaimlerChrysler has changed several times in an attempt to fix the problems with the transmissions. A mechanic I know says that nothing short of a total redesign will really fix the unit - that it is a faulty design from the get-go that nothing they've tried really ever fixed. Allpar (the DaimlerChrysler enthusiast site) has an editorial that essentially agrees - saying they should leave the design to history and go forward, preferably with a Mitsubishi or Daimler-Benz design (see below).
The survey may not have an exact date, but it's very recent - they had the news about it on the website just a few weeks ago.
The enthusiast editorial on the faulty transmission design is here: