I've never had a problem with any of the firmwares. they've always worked fine.
I wonder if your dish is slightly off alignment and it isnt picking up this weaker transponder (this is purely a guess, mind).
You have to leave it on the 7 day data channel for at least one minute. What I do is go onto the 7 day download channel and press ok once (this changes to the channel but still leaves the channel list up onscreen). I then press right a couple of times until I can see plenty of channels in the list. From here you can wait and watch it fill up the epg data for each channel.
Just a quick question, you aren't pressing the yellow EPG update button are you? That only downloads Now and Next and is used only for foreign satellites that only carry now and next.
The correct way of getting the 7 day epg is like this:-
Change the channel to any one of the channels called "7 Day EPG Download". You will find them at the bottom of each favourite group if you are using the channel lists direct from Blade Online (recommended).
Watch this channel for about 1-2 minutes. The screen will say "No Audio/Video" because it is a data channel.
It will now download the channel list direct to the box and you should have 99% of the channels showing 7 day epg.
As I say, don't use the Yellow button EPG Update, this is only for foreign satellites with now and next.
Phew, long post