Ok there might be some pretty simple questions in here but you have to think, you might have asked yourself the same question at one point.
Sometimes I click on Pledit to change some things on my character and I keep getting the message ---Runtime error 005 at 00B7:4081

This isn't hard to fix, what that means is the file is a Read-only. To change this right click on the furcadia.ini file so the little window opens. At the bottom of the list there should be properties. Click that and another screen will come up. At the bottom you should see 4 check boxes read-only, archive and what ever else. What you need to do is take the check out of read-only and click apply. This should fix that problem.
When I make a new character and go into furcadia for the first time I have no portrait of myself and I can't click on anybody.

All you need to do is leave furcadia and re-enter. This should fix that.
I can't seem to be able to whisper to people with a space in there name ex. Lord Darkness

Here what you have to do is put a line between the names ex. Lord|Darkness. To make this hold shift and the \ button. It should be the button beside the backspace button.