BMW Repair: 1997 528i Belts, powersteering, pulleys

Question
I am looking for a diagram to put the two belts back on.  They are in good condition but some how popped off.  One is a short belt and the other is longer.  I believe they are for the altenator, powersteering, fan etc.  The car is at my office and rather than tow it I want to put the belts back on and drive to the shop where they can inspect why they popped off.  Thanks for you help in advance.
Gordon

Answer
Main beltgoes clockwise arond crank,top goes around tensioner,back to waterpump,(under idler if used) then to alt and the p/s and back to crank
a/c belt is by itself off of crand
check all pulleys for play
Use allen socket in hole in center of tensioner to pull it back
I think it is a 8mm