I've very new to flashing ROMs, in fact 1.7.15 was my first. Now that 1.7.22 is out I'd like to flash that, but when i do, what will I lose? Will i basically be starting from scratch and will have to restore all my apps and settings again?
Just reflash the new updated rom. You wonct lose anything. If you have titanium back-up. Run back-up all system app and users app. That way you can restore everything the way they where.