> Okay, I have made the modifications as suggestion (syntax folder
> where you put the ck.vim file, and the filetype.vim file) but
> when I run $vim filename.ck I see no highlighting. Is there
>  something else I need to do to use this functionality?
>
> - rohit
> --
>

Yes, it's written in the wiki too:

"Tip from Graham Percival:
" If you cannot write to /usr/share/  (lacking root privileges),
   "   enter these commands:
   "     $ echo "syntax on" >> ~/.vimrc
   "     $ mkdir ~/.vim
   "     $ mkdir ~/.vim/syntax
   "     $ cp ck.vim ~/.vim/syntax/
   "     $ echo "if exists(\"did_load_filetypes\")
   "           finish
   "         endif
   "         augroup filetypedetect
   "          au! BufNewFile,BufRead *.ck setf ck
   "          augroup END" >> ~/.vim/filetype.vim

cheers
Thomas