I sent 365 LTC into my vircurex deposit address about 16 hours ago.  No sign of it in Vircurex despite having over 300 confirmations.

I posted this on reddit to see if anyone else is having the same issues.  I'm glad I found this thread, this appears to be a very serious problem. 

http://www.reddit.com/r/Bitcoin/comments/1p4g9c/do_not_deposit_any_coins_into_vircurex_several/