Hi. The forum is configured to mark posts with more than a certain number of links in them as potential spam, hence requiring vetting. I've upped this number slightly now.
RE: dartiss - I checked it myself and turns out this is due to the fact that we moved the tools onto a different server late last week, and it appears the mime type for XPI files wasnt added to the new download location (sorry!)
I've added the mime type now, so you should now be able to download and install the Firefox plugin 
Kindest regards,
James Sweet
http://www.zen.co.uk