icon maker
 

where can i get a free application that i can use to create icons. or at least convert my existing image into .ico image. i mean completely free not the trial period thing. currently i have CentOS 4. or can any application in CentOS be able to do this?

Either use The Gimp, which can save as the format Windows Windows Icon, or install imagemagick, and then type in the terminal e.g. convert filename.png filename.ico