It is possible that patches after 6.0.2.0 break compatibility. We'd rather have stuck with an earlier 5.x version, but we would need a client available. As for how to initiate buying or selling, this is listed in the vendor commands section of the play guide: http://uo.unreal.us/?page=guide

I'm not familiar with what UO shard lists are popular. The ones we were listed on before are no longer up. If you care to give a list of URLs to where to post the shard I would appreciate it.

We'll look into the dungeon respawn speed, but keep in mind that dungeons are generally for more than one or two people at a time.

The ore resources appear to be functioning normally. There's always a chance that you may find more or less of an ore in an area than their overall occurrence percentage.

We have switched the unreal.us forums from UBB.Threads to phpBB 3.
All users will need to register for a new forum account.

The best method for obtaining non-ingame help from a staff member is to use our support form:
http://uo.unreal.us/?page=contact

The server is scheduled to restart at 3:30am Pacific time every night. However, the last save before this restart occurs at 3:00am. This means that for half an hour anything done, even the creation of new characters is not saved. This is a good opportunity to test things such as house placement, or ...