Why won't my Htc EVO boot with BUGLESS BEAST V.5?

[chrome258]

I have just downloaded bugless beast straight from peter alfonsos website,im trying to switch to bugless from RVU.i followed the directions by wiping data and cache and also backing up the last rom(btw it said "there may no be enough space to complete backup",all with rom manager.Once it backed up it showed that it installed bugless correctly and automatically restarted .Once it rebooted it shows the white "HTC EVO 4G",but then freezes there,and can only be turned off through removing the battery.Any help would be appreciated