There are a LOT of articles that have been written to try to answer questions about the site. See the "Help" on the very bottom left of your screen? Run your cursor over it and another menu pops up. You want "Ask a Question". Sometimes it can be a little tricky asking a question with just the right key words to get the response you are looking for, but it's worth it to be persistent.
Is there a chess.com information page or guide?
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As an example, I just did a search for "Game Analysis" and this answer looked most promising...
https://support.chess.com/article/365-how-do-i-use-game-analysis
It even has a video link with Danny Rensch!
Hope that helps....
Thanks @baddogno for the response, but yes I was hoping for a better answer as the search option doesn't really help me because I don't know what term to even search for. I tried "bar on the left" and nothing useful showed up. The analysis video did give me some good info about analysis, but yet it still doesn't explain the overall interface that I'm looking at. But I appreciate the help. 
Yeah, they try to keep up with new and revised articles but they change stuff so often around here that they don't always succeed. The other day I was trying to help someone and find out how much time you had to make a move (it's not the same as how much clock you have left). Tried umpteen searches; turns out I had to look under "game abandonment". Alas, it's all we have...
Oh and your question about what the number 6.05 means? Well, you know how the value of pieces works, right? 1 for a pawn. 3 for a knight or a bishop, etc. Well if the engine evaluates you being up 6.05, that means the equivalent of 2 bishops or a rook and a pawn. It may not tally exactly with the piece count however because there is also a positional evaluation that affects it. I'm sure the right article does a better job of explaining it...Now if only we could find it. LOL 
I've been a member for a long time now and yet there are still things on chess.com that I don't know what they are. Is there a page here that explains what I'm looking at on certain pages, a sort of informational guide?
As an example: When I do the after game analysis, there is a bar to the left of the chess board that goes up and down, based on who is winning. The higher it goes (showing black say) that means the higher the odds are of black winning. But today I noticed there is also a small number at the bottom of the bar (My bar was high up, but the number said 6.05). So not only am I wondering about what that number means, but where on chess.com is that explained? Thanks for any help.