patch installation

I have downloaded the patch for the security bug found with the file uploading. One server has php 4.0.6 and the other has 4.1.1, but my problem is that the patch does not have any instructions. I was going to use the patch command, but I don't know what parameters to use. This question was asked on the mailing list a few days ago, but there were no replies. Can anybody tell me how I might install the patch on the servers? Do I have to install it over the source and recompile? What command line might I use? It is a hot fix? Thank you in advance. Aaron