Most of the controls (for sliders) are available sideways already, just drill throught the Numeric controls pallette. They are available in the X and Y directions.
If you want to rotate a picture or create a more specialised custom control chcke out the following posts: -
Links to pre designed custom controls:-
http://forums.ni.com/ni/board/message?board.id=170&message.id=161749&query.id=67028#M161749
Specifically the post by Altenbach (rotating an image)
http://forums.ni.com/ni/board/message?board.id=BreakPoint&message.id=14&view=by_date_ascending&page=2http://forums.ni.com/ni/board/message?board.id=BreakPoint&message.id=14&view=by_date_ascending&page=2
Also here (for real detailed stuff on the picture control):-
http://forums.ni.com/ni/board/message?board.id=BreakPoint&message.id=14
And if you really can't get just what you need also check out the newer LabVIEW8 Xcontrols:-
http://zone.ni.com/devzone/conceptd.nsf/webmain/1ae46af02d67af468625706e006e577c
