Ga well if your stack & VV windows have plexi inner panes there should be an aluminium split retaining ring around the perimeter of the inner pane. If you carefully pry up the ring at the split you will be able to pull the ends of the split towards each other and the ring will come free of the window. The you need some type of hook tool to get under the plexi inner pane and work it free from the butyl tape holding the inner pane to the outer. Once it comes free you can then clean off the old butyl tape and the deteriorating tinting. Retint, apply new butyl and reverse the process for reassembly. Look here for how I did mine. http://www.airforums.com/forums/f454...tml#post864410
Actually read the whole thread it is very informative and started bt a fantastically talented guy.
So now for the rest of the lift up windows. If the inner panes of them are plexi they are very easy to remove and fix. If you look all around the inner edge of the window frame, not the window sash but the frame that holds the glass you should see several screws. The hold the inner plexi pane in its own frame. Once the screws are removed you can gently pry the inner frame and pane free from the outer pane and frame. Then clean off the tint, reapply and use a new closed cell gasket to seal the two pane frames together. You will have to remove the window frames assembly from the sash. This is done by first removing the lift up handles, then remove the screens and screen frames which are screwed into the window sash. Once the screens are removed , remove the lift up rods from the window sash. Then from outside manually lift the window up almost 180 degrees and the window frame will drop free from the window sash. Both the window frame and the window sash have a corresponding J hinge connecting them together. Be carefull reinstalling them so as not to bend either hinge. Usually this requires two people to reinstall them. One person holds the window frame in place and the other person from inside gently taps the middle of the window hinge into place. They tend to bow out in the middle and won't easily mate together.