It seems that you're new to this forums, so:
1. Please don't make multiple posts for your questions. Some people will think this is impolite. If you're asking several questions at once, you should try editing your last post to include all your questions.
2. Winzip can open read most of the zip files. By the time you make this question, why not try opening it yourself? It wouldn't hurt.
Linux ? Which flavor is best ? I use Mint.
This question is not related to UBCD, so I'll skip it.
I am attending a Jr College and taking a degree in computer science (IT Network administration) you would think that some of the courses would tech students how to make a bootable CD & USB stick.
My college experience tells me that you have to learn most of these by yourself. Most computer science courses won't teach you this 'skill'.