[cSro]Save a bought account

Hi
Can anyone tell me what i need to change after i bought an account
so that the old owner cant get it back, and maybe also how i do this???
thx

the pw? xD

No euhm, change the e-mail? don't you need the e-mail to change pw? *-)
[Only registered and activated users can see links. Click Here To Register...] (link from c-sro.eu)

thanks
thats what i thought but i havent found a link to change the mail:)