My brother's left handed and he has told me that when he first started he struggled to grasp reading tabs etc. But then someone pointed out to him that, as long as you understand which strings are EADGBe on your guitar, it is just a matter of putting your fingers on the correct place on the fretboard.

The lessons here (and anywhere else for that matter) apply to both right and left handed players, (as stated before); just read the tabs in terms of strings and frets and you shouldn't have a problem.

Hope that's of some use.