Crysis 1 mods not loading, "steam" please help

Hi guys i recently downloaded Crysis 1 of a steam sale. I have installed steam on my and have added the black fire graphics mod to the correct folder. E:\Steam\SteamApps\common\Crysis. When i load the mod in game and restart the game nothing has changed, no orange text at the bottom of the menu and no change in overall look of the game. :( i have also added some .pak files to the folder to enhance foliage and they have not taken effect. 

This is my first time modding on my pc and i am really frustrated and tired of trawling through forums with no success. Thanks all comments/help welcome.

Can you post a link to the site where you downloaded the mod, and any exact instructions you followed from the site. I know you gave a short description but minor errors often have to be caught with a fine tooth comb.