I am attempting to set up port forwarding with a Juniper SSG-5 on my connection that has a dynamic IP. I am aware you're supposed to configure a VIP, but when I create a VIP on the untrust interface (and select "same as the interface IP address"), it creates it, but when I go to edit it, the Juniper will not allow me (I click edit, but nothing happens). Therefore, I cannot add a service (custom or otherwise) to be forwarded to an internal IP. I can remove it the newly-created VIP, and re-create it, but I cannot edit it (needed to add services, point to an internal IP, etc). Again, when I click "edit", it just sits there, and no options for adding services or anything else appear. I've tried multiple browsers, and they all exhibit the same behavior.
My specific Juniper version is the SSG5v-92, and the firmware version is 6.3.0r9.0. Is there something I'm doing wrong? Why can I not edit this newly-created VIP to add a service and point to an Internal IP to allow for port forwarding?