looking for WM6.0 to flash back on to my phone

[swonce]

I upgraded to the 6.1 yesterday and now I can no longer use my internet sharing option. I have been told I need to pay for it but I have been using it for months untill I upgraded to 6.1.
My bootloader has already been replaced so I figure it should be easy to flash 6.0 on it.

Any Help???
I'm only hoping it lets me use the internet sharing again. if not then its time to start looking for a cool OS