To center your profile use this code;
#site { margin-left: auto; margin-right: auto; }
and moving the sections depends on where you want them, you can use code like this;
#about { position: relative; left: ***px; top: ***px; }
Replacing the *** with a number will move the about box that many pixels away from the left and top edges of it's parent element, in this instance for the
#about section it's parent is the
#content #main box. You can replace
#about with any of the section names you wish to move ie.
#details, #signature, etc.
Or even use the
position: absolute property to place the sections the number of pixels away from the top left corner of the page.
*note: this can have bad effects across differing screen resolutions*
That might be a bit difficult to understand, sorry
sweatdrop , so if you need any more help just ask.