First off, by "original" I mean a game not derived from another pre-existing game. So please, no final fantasy titles or anything along those lines.
Basically I am very well acquainted with the programming end of the RPG Maker 2000 (sorry RMK2003!). Therefore, my assistance would be on the programming end (actually doing it myself rather than giving tutorials). I think it would work best if you have some specific section in mind to which I could contribute (such as a mini-game, day/night script, or special abilities). I can also help with some monotonous stuff like battle animations.
I am very good with the RPG Maker (although not perfect) and enjoy pushing the program beyond what it offers at face value. I am hoping my offer will help people keep their works in progress. With that in mind, I am most willing to help with games that are already coming along nicely. I think I can help the most if you are also pretty good with the program. And of course, I want to be involved in projects that catch my interest!
As a final disclaimer, please don't take it personally if I decline involvement on any level. Your project should still be yours; I'm not looking to co-design anything. Creative people don't always see eye to eye, so we simply may not be suited to work together.