Need help ASAP!

So i have made a video guide for the forum with hypercam.  Everything works fine and also i have sound recorded and stuff.  But when i play the vid to see the results i notice that the video is very fast. So fast that the sound is not keeping up with it. I mean that the vod shows ok but the screen is alsways A LOT ahead than the sound. This makes the video impossible to watch.

I realy need your help to solve this one. Any suggestions about it?

Should i edit it using something?? Any sollution is welcome. I realy need the an answer.

thx in advance

:) :)