Revised 14 03 07:
OK, we all know that you can't resize the CPF window and it is very annoying.
I've been using a little utility called CMDOW Commandline Utility for a few years now to resize, move, hide (and lots more) program windows where the programmer didn't provide that facility. It annoys the hell out of me that programmers won't store the window size and position of their applications.
CMDOW can be found at
http://www.commandline.co.uk/cmdow/index.html.
All you need is a shortcut (with an icon from CPFSUBMIT.EXE - as CPF.EXE doesn't have its own icon) with the following in the "Target" line:
CMDOW "COMODO Firewall Pro" /SIZ 1500 600 /MOV 100 572 /VIS
If you place CMDOW.EXE in the system32 folder it is always available. If you don't want to do that then you need the path of CMDOW.EXE at the beginning, for instance:
"C:\Program Files\CMDOW\cmdow.exe" "COMODO Firewall Pro" /SIZ 1500 600 /MOV 100 572 /VIS
Obviously you'll need to change the /SIZ size and /MOV position parameters to suit, this is for a 1600x1200 resolution screen - CMDOW web page helps.
After the first call of this shortcut you can click on the CPF taskbar icon and it will still appear at this size/position until you reboot/start up again.
Have fun!
Mark