No, I've only got MS Essentials installed.. But I've actually managed to open the port now.. Not quite sure what really did it to be honest but here's some of the things I've done..
• Enabled dyndns on the router
• Disabled DHCP
• Disabled uPnP on the router
• and a few other things which I don't remember atm.. ^^
But thanks alot to both of you guys anyways!
If anyone else should come across my problem (with the same modem/router etc..), don't hesitate to ask me and I'll try to walk you thru what I did..
iCam rox! Peace!