quartermain
Lurker
Open ROMmanager, it will likely tell you it needs clockworkmod recovery, which you already have, but allow it to install it anyways. I did this thru selecting 'FlashClockworkMod Recovery'. Now select 'PartitionSDCard'> Ext Size> 512mb>Swap>0 and let it do its thing... it will reboot, but may take a couple of minutes
Everything worked fine for me up to this point. "FlashClockWorkMod Recovery" asked me to confirm the phone model, then I got the circling dots indicating a sync, then a message saying it had failed. Tried a few times with no joy.
Then tried exactly the same thing this morning and it worked! Bizarre.