flash problems

Hi guys
I am trying to sort my Dreambox 800hd clone out as you can see by the recent posts and the reply's from the people trying to help me (all good)
So I thought I would start from scratch by installing a fresh image which was recommended, so the problem is now that when I try to flash the box from pc (when you shut box off and restart and keep button in)it either says unable to find page or I get a red fail image at the top of dreambox control centre any ideas, also looking for a channel list which will get all uk and foreign channels so I can set the dish up Heres
Thanks John