Help with Links

I have just started using Multizilla and am still feeling my way around. 
  It's really nice, albeit a little busy.

I have a couple of questions

1. I love the ability to open new tabs from external links.  I get a 
daily digest from Computer World with a link to various stories.  I 
click on the link I want to read and it opens up a new tab 
automatically.  Cool.  I used to have to manually have to do that.

The one problem I have is that I can't start another Mozilla window by 
clicking on a shortcut on the desktop.  I have turned off "external 
programs" check box on the  "Links" pane.  I'd really love to see this. 
  The workqround for me now is to find Mozilla and hit "Ctrl-N".

This problem is mitigating one of the best things I like in Multizilla.

2. Opening a new tab does not always go to the last selected Mozilla 
window.  It goes to some other Mozilla window (first?).  But it does go 
consistently to the same window.

3. I prefer the "Preferences Toolbar" since it's pretty much one click 
instead of the multiple clicks on the Multizilla menu.  The problem is 
that I lose some more vertical space.  Is it possible to combine the 2 
toolbars?

Regards
Milind