I am having the same issue as Mister1K, but I make it to block 577851 and then it hangs.
I tried using Sep.21.2014.Diamond.zip from the op, and I tried dmdchain20140923-clean.zip.
I tried using -repairwallet. I tried -checkblock=0 -checklevel=6 from the readme in dmdchain20140923-clean.zip. I even tried using an old copy of the wallet to make sure the wallet wasn't corrupted. Same results every time.
diamond.conf:
server=1
rpcuser=xxx
rpcpassword=xxx
rpcport=17772
listen=1
noirc=1
addnode=193.68.21.19
addnode=54.191.208.14
addnode=54.255.133.30
addnode=54.86.164.216
connect=193.68.21.19
connect=54.191.208.14
connect=54.255.133.30
connect=54.86.164.216
bantime=600
rpcallowip=127.0.0.1
rpcallowip=192.168.1.5
rpcallowip=192.168.1.6
rpcallowip=192.168.1.7
rpcallowip=192.168.1.14
rpcallowip=192.168.1.129
rpcallowip=192.168.1.*
Every time I end up with one connection to 193.68.21.19 and an on again/off again connection to 193.68.21.19:17772.
Some help would be appreciated. Thanks.