Did they close, are they still taking accounts, ??? http://www.elitetrader.com/vb/showthread.php?threadid=73840
Who cares? They got hit with a $700k fine in 2011, IIRC, due to naked shorting (shares) and some other lesser charges. They had a ton of capital so my guess is that they just decided it was time to quit.
Ask a poster on elitetrader named MAVERICK. I think he was a principal at Vtrader. I know he handed me a cool polo shirt with the Vtrader logo on the golf course several years ago.