Guitar Pro 5 for Mac?

I don't think they make a version for mac. Same with powertab, which kinda sucks. The best thing to do, if you really need these programs, would be to use bootcamp if you have an intel mac to run Windows and just use Windows for those programs (or any other windows only apps).

The other option is to get a program like Sibelius G7, which is an excellent tabbing program, but it'll cost you money unless you steal it or something. Its not too bad tho (99 bucks i think). I have found it to be buggy on my intel macbook tho (even with rosetta), so hopefully Sibelius will release a native version soon.