There's a big thread I started some time ago on XDA on how to root the Xperia Pro mk16a/i.
I don't want to copy/paste the info to here because there's 73 posts in the thread, so here's a link:
[HOW TO] Root a bootloader-unlocked Xperia Pro MK16a - xda-developers
I don't want to copy/paste the info to here because there's 73 posts in the thread, so here's a link:
[HOW TO] Root a bootloader-unlocked Xperia Pro MK16a - xda-developers