Page URL redirects in IIS

[Vedran]

in need my client to load a web page(www.secondsite.com/Page1.aspx) if the request comes only from www.firstsite.com/Login.aspx.other wise client the client should be redirected back to www.secondsite.com/page1.aspxcan i achieve this using IIS 7 or any other way?. i have tried URL rewriting module in IIS and i have only managed to restrict the access to www.firstsite.com/Login.aspx and redirect thr request to www.firstsite.com/Login.aspx. but unable to achieve the above behavior in IIS. please help