Phone locked with unknown pattern

[Guest Subotai]

Hi all.

Just charged up my Orange San Francisco and like a mug, tried the lock pattern. I got up this morning and cannot remember it. I have tried every pattern (so I thought) but cannot remember it. It has not been setup yet, my simcard has not arrived so there is not one in there. Is there anything I can do to wipe it and start again? The instructions from Orange were you have to do this from the menu but I can't get there due to the pattern lock. I read something about clockworkmod recovery but after a search on this site, it seems you have to install filer or something first. Can someone point me to what I need and where to find it?

Thanks,

James