[HL2RP] Map won't work?

[Edstiza]

I haven't played this (or anything on steam) in like 2 years because of a broken computer and I'm having trouble with the map for HL2RP on Garry's Mod.  I have tried downloading it twice from the download section, I put it in the addons folder as well as the maps folder just in case.  Is there something I'm missing?  It's been a while since I've done all this...

[smt]

make sure it looks like this:

[Edstiza]

EDIT: Got it now, thanks for the help.