Prefabs for Counter-Strike:Source tutorial

Firstly here's a link for a pre-done one which i made http//ww:w.filefront.com/15624795/Prefab.rar
(Going to dot point this cause its all im good at)
1#Open hammer for CSS(Counter-Strike:Source)
2#File>New map
3#Click entity tool (Shift + E)
4#Change categories to prefabs
5#Pick the 12_Spawn_Terrorist_Buyzone and place somewhere on ure map for a buyzone with 12 terrorist spawn points.
6#To make a prefab just follow what i did with my prefab then highlight everything you want to put in the prefab and bind it together using (shift + G).
7#Then click 'create prefab'
And ure done