Issues with the mighty rom on my TP2

[schaff05]

I bought a used TP2 for Sprint from a guy on Ebay to replace mine with a shattered screen. It came with Mighty Rom on it which the guy informed me wouldn't be an issue when switching activation to the new phone.

I went in to get it activated and after two hours all they could do was activate it so I could make phone calls. The internet will not work no matter what. They tried and tried and ended up saying I needed to contact the guy to see if he could help. I have done this but was hoping someone here could help me.

I don't even have a clue what Mighty Rom is or how to work with it but I did download the profile updater I found on another thread(because my phone isn't showing a profile updater on it) and I tried to transfer it to my phone but now can't find it anywhere. And the updater is still not showing on my phone.

Could anyone possibly tell me what I am doing or if this is fixable?
Thanks for any help.