If you downloaded the 3.3 release package earlier than yesterday, you should download again, it has been actively updated.
If you downloaded it yesterday, I may have to take another look on the 503 issue
I would have to say LiteSpeed is the best people Ive dealt with concerning bug reports. They take them seriously and fix them asap. I have never been brushed off or had problems filing a report or simply asking a question. Thats just awesome in software because back in my hacking/security days we used to notify vendors about exploits and such. 90% of the time they would either deny it, ignore it, or take months fixing and almost all of them never treated anything like an emergency.
Everytime anyone reports problems to litespeed they are taken care of fast and everything is treated like a serious issue. Cant ask for no more.