IE to Netscape

My website : [login to view URL] works very well with internet explorer 4.0 and higher. it will not open any of my .php pages in netscape. I am using frontpage 2003 exclusive and I use top,left and bottom as include pages. I need someone to check my code and fix it so that netscape users can have a similar experience as IE customers. ## Deliverables code webpage(s) as required to be visible in Netscape, provide me with an written explanation and code as how you did it. you can code live on the site or I can let you ftp the site. Must give me an exact deadline as I can not do anything to the site while this code is being changed. ## Platform linux, unix, windows NT, IE, netscape