how to put profile on left side of post

[TS_CUZ]

like in this picture

http://www.ultimateuploader.com/files/1917BlakThread1.png

is it based on the skin or can i change it in the ACP?

[cheat-master30]

You mean user information to the left? Just set the option to use Legacy Postbit.

[Kirk Y]

vBulletin Options -> Style & Language Settings -> Use Legacy (Vertical) Postbit Template: Yes