Go to Your cstrike folder and find the file called liblist.gam . Show us the contents of it.
Can You start answer to questions - what is Your OS (operating system - linux, Windows XP , Windows 2000 or what)?
Go to Your cstrike\addons directory and make for us the screenshot of it (as jpg file - not bmp). Then go to Your addons\metamod directory and make another screenshot (to show us the structure of Your metamod folders - also as jpg). Make sure Your metamod is installed correctly (read
this topic about 10 times to inderstand how mm should be installed manually)> I think - if You see nothing after typing "meta list" - Your metamod isn't installed correctly or Your game dll (mp.dll) is called directly from game shortcut (instead calling metamod.dll).