Since Autodesk's "The Area" took over from the SI community website, it seems that people are pretty unhappy about using the site - it is, afterall, pretty horrible to look at and a nightmare to navigate.
Anyway, while I think it was initially established as a backlash to "The Area", a new Softimage Community forum is now thriving. It's simple and easy to use (like the old one) and it can be found here:http://www.si-community.com/community/index.php
It seems to be thriving already. Sign up! It needs the support!
I've posted my dxf importer plug-in here for download in the Download > Plugins area: