Greetings, this mailing list is for discussions about the Savannah website itself and Savannah is a hosting website, so you should ask your question elsewhere, in example in your distribution mailing list or forum. Be sure to search before asking, because this seems to be a common question. Anyway you should accomplish your goal by downloading the kernel and then executing the default package manager command that you would use to install a package from a terminal, in example:
yum install kernel-2.1 sudo dpkg -i linux-image-3.2