Hi Socim

I found some time to try it!
I flashed the recovery you provided, wiped data and cache, then flashed the following:
cm-10-20121029-UNOFFICIAL-e120l-signed.zip
cm-10-20121030-e120l-update.zip
cm-10-20121030-e120l-update-320dpi.zip
Camera-noFC-no.storage.select.option.zip
google apps pack from wiki.cyanogenmod.com/index.php?title=Latest_Version/Google_Apps
I then wiped data and cache again, just to be sure, and rebooted.
looks like the ROM works (woo Jelly Beans!) but I still can't send any SMS messages. I haven't received any yet, but I might still get the same "unknown sender" problem as before. The call function seems to work... data is still quite slow.
So... I'm upgraded to 4.1.2, but my phone still isn't working! boo

What do you think I should do?
Also, I need to do this wipe data/cache thing every time I flash a ROM? Should I always just do a backup through the recovery so I don't have to go through the trouble of reinstalling apps and all that?
Thanks again