yakker, if a road is missing it means it's older than the public-domain vector map data I'm using. For the moment there isn't much I can do about this.
Daultonio, at the moment it's being updated every week (not this week though) and requries you to uninstall your old one, and install the new one. There will be automatic updates in a future version.
cct, I'm looking into that bug, a few people have reported it and I haven't yet gotten to the bottom of it.
NVFlyingMonkey, I'll post the Nevada file this coming weekend along with a few more states. I haven't quite decided yet how I'm going to bundle USA data together.