HTC Sensation :: How To Add Music And How To Remove Facebook Sync?

1. how to transfer music from my pc to the phone. I've installed the sync program and tried to connect the phone with the "sync" option when connected to the pc - "no device found". I tried connecting as memory card while hoping there were some folders with sensible names for putting music files into it, but no. So how do you do it my peeps?

2. When I first started up the phone I thought syncing it with facebook was a good idea... turned out not so good.. Now all my contacts are saved 2 or 3 times, and some of them with no phone number even, just their name. This is really shit. So, if I go from the main screen to "all apps" and "contacts" (not sure what it's called in english, but i guess it's kinda something like what i write) I managed to turn off the facebook thing there, and the contacts were removed from that list. BUT, when I click on the phone symbol in bottom center of the main screen they are still there, I also tried restarting the phone - no effect. Also, it seems like i can't delete them one by one either so..

And what does the expression mark with a circle around it mean? It appeared in the top left corner the other day.. something bad? Looks something like this ( ! )