i have managed to finally get theproblemsorted after about 6 hours, i read an article in adobe
http://www.adobe.com/cfusion/knowledgebase/index.cfm?event=view&id=KC.tn_19109&extid=tn_19109&dialogID=36437612&iterationID=1&sessionID=9630d3290cb0602d7462&stateID=0+0+36443352&mode=simple which said that the session is invalid will occur when trying to use session variables when the j2ee session variables is enabled in the cf administrator. so i turned ofthe j2ee session variables and it is now working fine thanks for all your help ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting, up-to-date ColdFusion information by your peers, delivered to your door four times a year. http://www.fusionauthority.com/quarterly Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:254178 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4