Window Coverings

Janie (my wife) and I spent the day cleaning the 3023 that we now own. We spent quite a bit of time taking the curtains down. It seems that each side has 3 screws that must be removed (one at the top and bottom of the curtain and one for the valence), making a total of six screws per window. My first question is this. With the curtains cleaned, do I need to put the top and bottom screws back in (no choice concerning the valance). Second question, if I want to change the color of the drapes (by dying) is there something I should know? Thanks in advance for individuals replying.
Randy & Janie Veach
Round Rock, Texas
TM 2023 TV 2002 Ford Explorer