1. I get sound, I would say sound could be a number of things. Too many to list here, but I would highly doubt they're related to EQEmu anyway.
2. There probably are no more servers. EQEmu is still in development, I think at current the most users any one server has seen is 16 (correct me if i'm wrong). It'll be a lil while before there are any real large EQEmu servers.
3. Only need to right click once on a merchant to use it. The game crashing is normal for the reason stated in answer #2 "EQEmu is still in development". There probably isn't anything you can really do about this one except wait for a later release...
Hope this helps...