I'm back(with some difficulty!)

[ppppenguin]

To copy:

Select the wanted text with mouse
CTRL+C
or
Right click and select copy
or
From the EDIT drop down menu select copy

To paste:
Put cursor where you want to paste
CTRL+V
or
Right click and select paste
or
From the EDIT drop down menu select paste

The reason the URL is so long is that it contains information unique to you and the job to be done. Since it's never intended to be typed in by hand the length is irrelevant.

Case sensitive passwords are the norm. I can't think of any examples that aren't case sensitive. Unlike email addresses which are never case sensitive. User names may or may not be case sensitive. Easiest to assume that everything is case sensitive and then it should all work OK.