get any "basic" theory books...should have something in 'em

or if you can give me a pic of a "real" tab and tell me what you dont understand, i could tell you(im not really good at explaining:P

oh yeah and check the regular guitar/bass theory sites, might have something in there too (insaneguitar.com etc)

you could also get powertab, and compare the guitarish tabs to the realish tabs(theres both in the prog)