I had problems with this version, as I can't access the stats page. I already discussed this with them and they are trying to bypass the problem. Previous alpha versions don't have support to this kind of Gizmos.
I had the same problem, I can't acces the stats page.
First I had to set the correct date:
[minepeon@minepeon ~]$ date
Thu Jan 1 01:11:24 BST 1970
[minepeon@minepeon ~]$ sudo date --set="30 May 2013 17:07"
[sudo] password for minepeon:
Thu May 30 17:07:00 BST 2013
At least a had to create the file /opt/minepeon/var/rrd/hashrate.rrd
[minepeon@minepeon dev]$ touch /opt/minepeon/var/rrd/hashrate.rrd
Now I can access the stats page.
But, my Raspberry don't discover my USB Block Erupter. Any idea?