updated ER TC web page

I'm attaching the updated ER TC home page content using the OASIS 
template; please send me any proposed revisions. I put in the full 
list of software documentation pages that I found even though they 
will be duplicated in the list of implementations. I'm happy to take 
links out or add new ones in; I figure the more links we can show to 
what we've done the better.

Once I have the FAQ template from Mary I'll do that and send it 
around for review.

cheers,

Lauren