My pleasure–I hope you find the info. helpful, as well as having Rockbox!
My greatest recommendation: download the PDF manual for Rockbox and the Zip (see the link above) and skim through it. Don’t read it, at least at first–there simply is too much info. there to prevent your brain from going to mush (at least it was/is, for me). But get a feel for all the many benefits and features that Rockbox offers, and jot down areas to return to later, for a more thorough reading. I will guarantee you: you are going to find a bunch of handy and nifty features that you never thought might exist, that you will enjoy and benefit from, personalizing your MP3 player experience. 
