Whoever told you all that, or posted any of that "information", needs to have his head examined. Sounds like something a despicable shop owner would say in an effort to bilk more money out of some poor unknowing soul.
Just get the proper transmission fluid and filter (built into the pan) from any of a dozen places and change it.
I used this kit:
http://www.thectsc.com/index.php?p=p...=187&parent=43
I just did my 134k mile tranny (first time according to service history) and had zero problems. Shifts like new again.
EDIT: I wouldn't use my email address as a user name either. Good way for spammers to add you to their list. Unless you're actually looking for Russian brides, cheap Viagra, etc.