Web sharing is not accessible outside home network
I'm running 10.5.8 on my Macbook Pro. I have allowed Web Sharing and Firewall is set to allow all incoming connections. I'm running MAMP and developing a client website locally. I want to allow my client to view this development site on my computer using the IP address I'm given in the Web Sharing section of System Preferences (within Sharing). I can see this fine within my network but no one outside my network can view. Can someone help me with why this is occuring and how I can fix? Thank you,
Jarrod
MacBook Pro, Mac OS X (10.5.8)