You don't really need a viewer, select the unit in the unit palette,
and have a look at the preview window (on the left, where it shows the model).
See those left / right buttons?
Finally finding about some of the bots that are flooding the users online - bytespider apparently is a huge offender here - ignores robots.txt and comes in from a ton of different IPs
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.