Thank you Bernard.

I am trying to use customobject to execute MySQL commands to get the resources and events and so far everything has been good except that when I ran the CarRental.aspx that I modified from the sample there was an annoying error "Object reference not set to an instance of object"  that popped up right after the "You are using an eval copy from Intersoft....." watermark. 

I have been trying to trace where the error came from but failed to do so. I believed it came from some where in the client script that was generated during runtime. Unfortunately I can't see the stack trace as I can't scroll down the error page. I attached the error page here.

If anyone has seen this please help. 

I also attached my project here. It was created with VS2005. I also created one with VS2010. Both has the same error.