In your first post, you mention you've heard conflicting opinions on whether or not you should change the fluid. I assume that means someone told you the urban legend that the gunky fluid actually helps old transmissions. THAT IS PURE POPPYCOCK!!!
That theory is based completly on junk science. It goes something like this: "I had a transmission that was on its last leg. Then I changed the fluid, and it totally crapped out." Well, duh!!! It was already marginal. Changing the fluid had nothing to do with the transmission failing.
It is NEVER a bad idea to change your transmission fluid. If you change it too frequently, one could argue that you're wasting time and/or money -- but you will not be hurting your car in any way.
'92 Mercedes 190E/2.3 (247K miles/my daily driver)
'93 Volvo 940 Turbo Wagon (263K miles/a family truckster with spunk)
'99 Kawasaki Concours
'85 Jeep CJ-7 w/ Fisher plow (226K miles)'93 Volvo 940 Turbo Wagon
'53 Willys-Overland Pickup
'85 Honda 750F Interceptor
'93 Nissan Quest
'89 Toyota Camry Wagon
'89 Dodge Raider
'81 Honda CB 750F Super Sport
'88 Toyota Celica
'95 Toyota Tacoma
'74 Honda CB 550F