Secondly, when I was setting up my test environment to start learning, a wierd thing happened with previewing a report. [..] I get 3 of the columns of data disappearing (out of 5). I also get a memo field in the page headers not printing completely (it should print 6 lines of memo text but ends up printing 4 lines plus 1 line with "..." in it - nice of someone to add in the ellipsis :-) but I would rather it just print.
Glad you like the ellipsis. MSFT chose this as the default StringTrimming option precisely so that people would notice when their data wasn't able to be rendered in the space available.
Basically, try making your Field/Expression controls much bigger, or using picture/format strings where possible, and see where the limits are when using REPORT FORM .. OBJECT or REPORTBEHAVIOR 90. The limits are different from the old-style GDI rendering.