Need help flashing

[12gage]

I apologize for my ignorance, and I've been trying to search my way through this and it all seem very confusing. I've finally got up the nerve to flash my apache, I'm still on the stock wm5 and was motivated by the want/need for M2D. And from my understanding you need wm 6.1 to run it. Every tutorial seems to be geared towards the 6800/6900 and not my prehistoric phone, I think I understand the kitchen instructions but can't find how to unlock my phone. Can please help this poor excuse of a phone geek? Thanks in advance.