Using iPad to post to online discussions.

I am in college and for many of my classes we have to participate in online discussions much like this forum. Whenever I try to access my discussion board from my iPad it says "Your browser does not support rich text editing HTML". Is there any way to post to the forum? There is also an option on the discussion board to upload a document. I thought about typing my discussion posts and replies in Pages and uploading them. But, I have not found a way to upload them from the iPad because it doesn't have the same file system as a computer. Is there a way of doing this or is this one of those unfortunate limitations of the iPad that doesn't quite translate into the "Post PC World".