Access to Page Level Session Variables

Hello, I am trying to access page level session variables from within the FCKEditor/editor/filemanager/connectors/aspx/config.ascx so I can setup the upload directory dynamically.

How do I get access to a session at the page level? I have been toying around with this and cant seem to get the access to the session.

session is created when the user logs in.
Session("UserDirectory")="directoryValueFromDB"

in the config.ascx file there is a method i am modifying called

public override void SetConfig()
{
Enabled = CheckAuthentication();
string mySession = "/" + HttpContext.Current.Session["UserDirectory"].ToString() + "/";
UserFilesPath = "~/UserFiles"+ mySession ;

}

what am I missing? please help, any info is appriciated.

Carl.