Root I really need help. Please.

[AstronautROB]

Ok so I seriously think I messed up my phone. I have a rooted debranded x10, obviously because I am posting here, that was running slow so I did a factory data reset on the phone. When it came back on it was running more smoothly but now my middle button does nothing! I can't figure out how to set it. Also I have no lock screen which really bothers me too. I don't know what to do.
Does anyone know how to get these features back on the phone? When I go under the settings screen and click sony ericsson it gives me a option for settings download and then at&t but it doesnt seem to do anything when I click it.
Did I really ruin my phone?
I'm kind of having a bad week I really hope someone can please help me out.

 

[KTP]

try reinstalling the firmware either by running SEUS and updating or follow one of the threads on xda or here to allow another rom to be installed.
i havent seen those issues before so i have no idea what would cause it

 

[CuBz]

I had a the same problem, I just re-installed software using SEUS and the problem was solved

 

[AstronautROB]

Thanks guys. I did just what you said and it fixed it. Although I lost my root status no biggie I just have to reroot.