i am having win2003 R2 with sharepoint enable , now when i am using sharepoint services , i can see that my other website under IIS is not working , since my organization is having other intranet portal developed in asp.net and using other database from which various reports get gengerated.

I am trying to find out is there any way that either i can call this portal inside sharepoint portal or i need to run them separately.

If i need to call inside the sharepoint portal then kindly help me to know the steps to do the same,

and if i need to run seperately then how i can configure the same in IIS , my IIS version is 6.0