Separate names with a comma.
FYI, official Gameloft forums are here: http://onlinegames-forum.gameloft.com/index.php?c=5#36 sorry if this is spam, didn't see it mentioned...
The skill upgrades are at the far back of the recipe/formula/pattern lsiting. FWIW, it's 550 for leatherworking to go to intermediate.
There is a vendor across from the AH that sells single use TP scrolls to major cities. Depending how far out you are going, it may be more cost...
