Sharepoint Help Desk Application Workflow

I downloaded the help desk application that was part the 40 applications that microsoft offered.  

Using VS2008 workflow project template has been  problem for me, for it doesn't recognize the help desk site I created.  error:  "sharepoint site location entered ins not valid. The sharepoint site at http://mysite     could not be found.  Verify that you have typed the URL correctly.  If the URL should be serving existing content, the system administrator may need to add a new request URL mapping to the intended application."

Any ideas on how to fix this.  I can navigate to the site just fine.  But VS2008 won't access the site.

thanks for your help.
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