Basic basics of PP and its hijacking Bridge

Question

I just got this program and looked at some tutorials, and some of the other things about getting started,overview, basics etc.   This is my first version.  Unlike with other programs that have manuals or built in help, I have been unable to find anything that starts at the very beginning, explaining what you see when you first look at the screen -panels, menus etc.  Everything immediately seems to assume you know all this already and goes to more advanced stuff.
Then my first experience after reading a tutorial and using the Bridge to open files was that when I next opened my CS4 Photoshop, it's Bridge had been replaced by a new one.  Clciking on any type of file would open PP, not Photoshop, despite that program being set as the default in both Bridge and Explorer. Camera Raw files could not be opened at all an batches would not run.
I called PP pro tech support and as they couldn't solve the problem. insisted that the Bridge was not a part of PP pro and transferred me to Photoshop tech who wanted to charge me $40 for helping.  I got a supervisor who also wanted to charge me and finally got him to remotely view that clicking on the Photoshop CS4. icon opened a Bridge that said CS5.  Then after some further exploration and closing the Bridge in task manager, was able to get back the original Bridge and said he would email the PP techs who didn't have a clue and should have provided the free support.
Still, if I use the PP Bridge it will hijack my Photoshop CS4 one and I will have to do this procedure every time.
So where can I go to start at the basics of explaining the PP screen panels, menus etc?

Answer 1

Thanks. I found the classroom in a book good for some very basic stuff on ripple and rolling effect and some of the workspace description.  I had already looked at some of the other Getting Started tutorial and they seemed to assume that one was already familiar with the panels.
The strange thing about the Classroom in a book was that it was hard to return to an earlier video to review as then only subsequent ones were presented.  I was never able to find the workspace one mentioned.  He talked about moving the tool panel but mine was not in the upper left as described and was a floating panel that I couldn't integrate with the others. After the 2 videos I watched, the next video had no sound and thus made no sense.
I reopened a saved video clip I'd worked on earlier in the day.
Then when I played the video I found that something had happened to it.  It was looping on about one beat of music and I had to extend it.  I don't know how that happened.  Also there are 2 white rectangles concentric within the edit window and I don't know how they got there.
I had changed the speed/duration to 70% when I saved it and now I find that I can't go back to 100%.  I thought I had made progress on some basic understanding but I don't know what's going on.
I had another project with just audio of a tabla player, because I like the ability to slow the tempo to better figure out what is going on.  After figuring out where a 12 beat measure looped, I thought I could move the selection to the next but with only audio I can't find a way.  And here if I change the speed the clip is shortened.  I thought I had read somewhere of how to avoid this but can't find it now.
Some help would be much appreciated.