Mahjongg doesn't start

Hello!

I used to play Geocities Mahjongg and it worked all right on my old notebook. Now I bought a new notebook and the man from the shop saved all the old programs onto the new notebook. But now if I'd like to open the game from the bookmark (www.geocities.com/dickbob2k/mahjongg/mahjongggame.htm) it doesn't work with Firefox. (The new notebook is an Asus, modern, and huge memory and RAM so this couldn't be the problem. I use Windows XP.)
As I tried it at first, the computer said that I needed to download Quick Time Player to play. I downloaded the required program, and now if I click on the bookmark, it would start playing the music and it says "Welcome to DHTML Mah Jongg!" but after I click OK, there stays an empty window, with no parts to move. But it doesn't say any other message that I should download something. So I don't know why it doesn't work, and what I need to do to make it work... Please help me, if anybody has a tip!
I tried to start it with Internet Explorer, and there it works fine, but it wouldn't start with Mozilla Firefox. Sould I just play it using IE, or is there a way to make it work with Firefox?
Thanks in advance!

Ancsi
from Hungary, Europe