It would also be useful if you could link to an example Warcraft III replay file.

Edit: I am looking into a solution on this for you, and will get back to you soon (assuming no one else beats me to it ;))

Edit: Sorry, it looks like I won't get a chance to do this in time for your question, however I will keep it on my list of things to do. I think the most sensible option would be to turn that WCIII Replays script into a WordPress plugin. If you give me your contact details, I will let you know if I get to release one for your usage.