Okay, I don't know anything about compiling stuff, but I found a website with links to something called GNU software. It's supposed to be part of some freedom of rights for software, because many who have free software (for example Firefox) don't cost money but have certain restrictions, thus free of money but not freedom of rights. Not that I care about that, but I want some software that doesn't cost money. The problem is it appears to be meant for people who are more advanced than just download and double-click to install. I found a program that looks useful, but it has files from mirror sites like .tar and tar.gz.sig. Apparently you're supposed to compile it or something. How do you go from point A to point B, where I can have a program?