I don't think its a good idea to start mapping for HL when a compo shows up... Learn the basics from tutorials and such, then you might considering compos.
Oh, I found a way to make it Half-life Compatible too. 1. Copy the Hlampmenu.cfg's (1-3) to half-life/valve 2. Copy command Menus/counterstrike/commandmenu.txt (!) to half-life/valve 3. Bind a key to +commandmenu within halflife. ( Bind P +commandmenu ) 4. Press P, choose "Winamp" and go for it- Tadaa!