I Have Half-Life 2: Episode 2; However, "Orange Box" Engine Won't Appear in SDK

[Lord_Ragnarok]

I recently downloaded Source SDK. I saw in a video that in order for Orange Box to appear as an option for an engine in SDK, you need Half-Life: Episode 2, which I currently have on steam. However, when I open SDK, the only engine options it displays are "Source Engine 2006", "Source Engine 2007", "Source Engine 2007", and "Source Engine MP." Is there something else that I need? I don't own Portal, which is part of the Orange Box, but before I go ahead and install that, I want to know if that's what I need to do, or if something else is wrong.

[img]http://filesmelt.com/dl/WhereOrangeBoxAt.dib[/img]

[Chris M]

Source 2007=Orange Box

[/thread]

[Juniez]

2006 is the original hl2 one
2007 is the original orange box one & what mods usually run on
2009 is what orange box games run on now
mp is mp

[RockmanYoshi]

Like what Juniez said,
2006 is the original HL2
2007 is the original Orange Box engine and most mods
2009 is the engine that runs HL2/EP1/EP2/Portal
Source MP is the multiplayer engine that runs CS:S/DOD:S/HL2:DM/TF2

[WTF Nuke]

[QUOTE=RockmanYoshi;35464402]Like what Juniez said,
2006 is the old original HL2/Lost Coast.
2007 is the Orange Box engine (HL2:EP2/Portal/TF2)
2009 is the new improved engine (L4D1/L4D2/Portal 2)
Source MP is the multiplayer engine (CS:S/DOD:S/HL2:DM)[/QUOTE]

Wrong, 2009 has HL2, Ep 1, Ep 2,Portal.
MP includes TF2.
Portal 2 and L4D1 & L4D2 run on their own separate branches.