ok I've done a bit of research and figured out that it's a macro security issue. The reason it worked the first day, but not after that is because when I made the script, macros were already enabled in that outlook session. Once I closed and restarted Outlook, I guess Outlook detected a new macro and automatically disabled it because it was from an unknown publisher.
The only way that i have found to get around this problem is creating a self-signed digital certificate. To do this, follow the steps found here (remove the spaces in the first part of the URL):
www . microsoft . com/technet/prodtechnol/office/office2000/maintain/security/vbamacro.mspx
If anyone knows an easier or better way, please post it!!