Murrine

Can you please explain for a inexperienced user how to do this... download ... (which files?)
open terminal
type what command and when? I get the following error after the first line: kbos:~$ patch -p1 can't find file to patch at input line 3
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:
--------------------------
|--- a/aisleriot/window.c 2008-05-07 17:23:08.000000000 -0400
|+++ b/aisleriot/window.c 2008-05-07 17:23:11.000000000 -0400
--------------------------
File to patch: