problem with front page files downloaded to dev machine

Hi all: I downloaded files via FTP from a site published with FrontPage and active Front Page extensions. When I try to run them on my local machine, php files are not recognized and parsed by Apache. IE gives me the save to dialog and Mozilla displays binary garbage. Checking the FTP log, it says that they have been downloaded in ASCII mode. I even tried a backup on the machine and download as tar file with the same result. Any ideas what could cause the Apache php parser to not recognize this? I am running Apache 1.3.23 on W2K with PHP 4.3.4. TIA Gunter