its hard to say from those pics, bit if looks like the majority of the oil is coming from the oil filter area. hard to be 100% sure on that as i've only really seen the filter from above.
when it comes to the inter cooler and connection pipe work the haynes is pretty poor.
regarding the turbo, if you take the engine cover off (the bit with tdi on) its will be in the top left hand corner (closest to drivers side) this should have a pipe that runs along the side of the engine then and to the inter cooler, the bit behind the engine goes to the exhaust i think.
if you can follow the route of the one coming out of the turbo then you should be able to check for any leaks.
this is a closer pic of the above
http://www.putfile.com/pic.php?img=5915316
not sure what part that is, but don't think it should be leaking oil, best bet is to clean it up and check for exsuse oil as you use the car, i'd imagine you'll get some leakage as the connectors aren't going to be perfect.
hope this helps