Perhaps you should start by reading some of the thread here. If you did, a lot of the questions you have would be answered.
As for the bit about the "MMS" access point, it IS still there if you use polite or rude mode. It's "hidden" if you use havoc mode (which I think is now the default). When I switch to polite mode (in latest version) I get a new APN called MMS.
If I don't follow the instructions on the wiki (step 1 is select polite mode), and let it default to havoc mode, I DON'T see the MMS APN, because I'm in havoc mode.