You should have materials and models folder in the archive ( or only materials or models ). Simply copy them to your cstrike folder
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Well, if you see a folder called materials inside of the rar file, extract that into your cstrike folder, the same goes for anything else in the archive.

Read the readme.txt in the rar or zip.
If there isn't one, open the file(double click), and look at what folders are inside.
If there's a cstrike folder, extract it to your counter-strike source folder.
If there's a materials, models, sound or scripts folder, extract it to your cstrike folder.
If it's anything else, extract it to your desktop or anywhere you can find it, then look inside that folder for any of the folders mentioned above and put them in the respective folders.

Thats the thing i dont have a folder, igot steam cz cs1.6 css just on here own in my documents :S

No i bought it off steam but i dnowhere the folder is

It should be in C:/Program Files/Steam/Steamapps/******/counter-strike source

Oh i see it was under valve (: thankyouu for your help
do i just extract it into valve?

Okay ill try that now
thankyou