software

I see a lot of different forums, some look pretty decent, just wondering, can you tell by just looking at the forum style or source code what software a forum uses? If so, what do you look for?

Hi, What software do you guys use for your localhost to test your websites functionally before uploading to your main website? I've found two but not sure if there any good - XAMPP and MAMP, but I'm sure there's many more, I used to use one years ago but forgot it's name as I've not used...