I'm back now. Anyway, for learning PBASIC, follow the suggestions given in
this thread.
As for learning C/C++, you're probably best off buying a book. I have C++: How To Program by Deitel and Deitel. It literally taught me everything I know about C++, and that was just the second edition. They're up to a fourth now.
As soon as I finish some of my current projects, I may go ahead and write a PBASIC/FIRST primer, covering all the basics as well as some example code, etc.
In any event, if you run into trouble with either PBASIC or C++, just ask in this forum and I (or someone else) will probably get back to you within a few hours.
--Rob