I would start here: http://dulfy.net/2012/04/13/dailies-...earing-in-1-2/
It's a great guide for new to 50 folks. It's only a tiny touch out dated due to the augment changes in 1.3 and the Group Finder, but otherwise it's a very solid guide for getting your feet wet.
Of particular interest, get your Corellia/Belsavis/Ilum dailies done, do your daily Group Finder FPs for comms. That alone should get you off on the right track pretty quickly. You should be in full Tionese without too much trouble.