Here's the scoop: I'm doing this for a non-profit organization that doesn't have the money to pay me enough for it and can't afford training. As a result, I have to make this so generic that ANYONE who needs it can use it.

It has tons of JavaScript1.1 (much more than I want) to make sure they can't submit data improperly. What the users (instructors) do is use a template I've made to create instructional plans that for their classrooms that meet rigorous state standards. Attached to the plans are activity sheets (the sheets I mentioned). These might be images, Word documents, spreadsheets, or other things to hand to students to supplement the lesson.

I have little control over the format they send these things in, so I have the problem that instructors on a PC won't necessarily be able to use activity sheets created on a Macintosh (but I let them know the platform they were uploaded from, which is probably the platform they were created on).

Other instructors can then view instructional plans and adapt them for their classrooms, thus allowing them to save time developing them and devoting more time to the students. I hope this answers your questions regarding what I'm doing.

Re: OpenSource. My company is strongly pro-OpenSource and we'll probably give the code to whoever might want it when we're finished, but I question the ethics (and legality) of my asking for free collaborators for a project that I'm getting paid for -- albeit I'm not getting paid much.