Okay, this is quite important. I bought the Orange Box about a month ago, and I'd like to import the EP1, EP2, Half-Life 2, and Portal models, textures, NPCs, and be able to use them in Hammer.
The first problem I ran into was that when I opened Source SDK, and then refreshed my SDK content, and clicked the drop-down box. All I saw was Counter-Strike: Source, Garry's Mod and Team Fortress 2. Nothing involving Half-Life 2 or Portal.
The second problem was, when I ran Hammer for Garry's Mod (I use Garry's Mod for testing my maps, because it automatically imports content from downloaded Source engine games), I had no textures to work with, the Hunter, Zombine, (and all the other NPCs) were error models, and I had absolutely no Orange Box models (part of the map involves a forest, which I need the EP2 pines for. They were non-existent.).
Does anyone know the problem?