Build your own kernel: http://www.kernel.org/pub/linux/kernel/v2.2/. Here is a how-to for compiling your own kernel if you have never done it before: http://www.freeos.com/articles/2589/. Don't forget to add it into your bootloader. If all you need is the kernel you should be set; good luck!

Hmmm, this isn't so easy if you insist on those two (for example: http://www.linuxiso.org/distro.php?distro=7 shows a link for it, but the actual iso is gone since long).

If you look through the list of search results for "old computers" on DistroWatch, you do have some 2.2-based distros ... look at http://distrowatch.com/search.php ...
The P!tux one actually boasts a 2.2 kernel rather visibly... Perhaps worth a twirl (http://distrowatch.com/table.php?distribution=drinou) ... Warning though, all the links lead to French content, and I've not tested it myself.

Otherwise... You could slum around on diverse ftp sites... This is a good swedish mirror that carry a surprising load of old/discontinued distros ... like The RedHat (7.? perhaps) based BestLinux http://ftp.sunet.se/pub/Linux/distributions/bestlinux/bestlinux-2000R3/BL_2000_R3_FINAL/ ( note that this includes a nice little ISO image too).

Or you could get a suitably dusty Debian like these: http://ftp.sunet.se/pub/Linux/distributions/debian-iso/

or ... Ah look in at this one... Actaul ISOs to all RedHats ever in the "redhat-archive"... oh goody: http://ftp.sunet.se/pub/Linux/distributions/redhat/redhat-archive/redhat/linux/7.0/en/iso/i386/

-- Glenn

Man, one should just shoot from the hip:-). Oh well.

-- Glenn