HL2 Mods...

[Bodzilla]

Can someone give us a hand in installing mods and maps for HL 2 games
so portal, TF2 and HL2

i've tried installing these maps manually by downloading but i've failed. And all of the files havn't come with readme's explaining it step by step for retards such as myself, so i'm in a bit of a pickle.

i got a map for Portal and placed it at this spot in my computer
D:\steam\SteamApps\zizlah\portal\portal\maps
Now the map has a .BSP extension on it. Yet in Portal when you try and import a custom map it needs to have the extension .bmz. So effectively the importer cant see it.

D:\steam\SteamApps\zizlah\team fortress 2\tf\maps
Same thing in TF2, i Got Jahrains map and placed it in the maps folder yet i cant see it in game, and in TF2 (from what i can see there) isn't a map importer.
E: Managed to get Jahrains map working. and i have no idea wat was wrong :/

And does anyone have any info, or have you played with the Synergy Mod? If so any words of advice for getting it up and running?

It's probably something stupid, but if i can get these questions answered once, i wont need them answered again.

cheers
~Zilla