How do you have crossepg configured ?
In crossepg > configure > set storage device to usb or hdd. OpenTV providers > press ok on sky uk opentv and save. Zap to a channel that has the full epg stream like itv2 and run crossepg downloader..
I'm trying to run virgin uk epg. So I updated all the rytec providers and then ticked virgin uk. configured to usb which has been formatted to fat32.