For Spray Image, just load the .vtf file & .vtm file.
put the spray.vtf file & .vtm file in logos folder (remember to put your e-mail address in path)
C:\Program Files\Steam\steamapps\YOUR E-MAIL ADDRESS HERE\counter-strike\cstrike\materials\vgui\logos
If you don't have a logos folder right click /new folder/ and name it logos.
If you don't want spray anymore, just delete the files you installed, and game will go back to factory setting
pic by .:|G.o.d.W.a.n.4.|:.