Hi i had major issues in the past in running an isa 2000 server on SBS 2003 SP1 and finally i had to remove it to make OWA and VPN Workd and infact never had any isuues with out isa i was trying to convinve to myself that once ISA 2004 is in things would work well.. i must say that it was wrong assumption i have follwed the following path for the upgrade Setup had NAT and OWA / VPN Accessing earlier "everything worked well" later 1. installed ISA 2000/ SP1 / Sp1 / FP2 / and the patch 2. owa never worked with this setup used to get the following erros "internal server error" etc etc etc 3, Recived the cd from MS after waiting weeks 4. Upgraded to ISA Server 2004 / ran publishihg rule / access policies 5. Current status - VPN works well owan doesnt work at all i could see owa screen and onc ei enter the username and password the following error displays Error Code: 404 Not Found. The requested item could not be located. (12028) 6. Internal users complanints that the netaccess is very slow Can someone advise