If you're asking how to get a report to prompt for parameters in ePortfolio, go into the CMC (Crystal Management Console), select Manage Objects, select the report and select the parameters tab. Make sure to select Update after setting them to prompt the user.
If you mean that you want to code parameters into a CSP page, that's a very different thing.
I've no idea what you mean by including a runtime query in ePortfolio.
Try describing what you're intending to do in technical terms.
-k