Hi Areal Person
You don't state what you are looking for. The latest kernel is here:
http://distro.ibiblio.org/tinycorelinux/4.x/x86/release/src/kernel/
Just two files, the patched kernel and the config file.
If you are looking for a tarball containing the source for the 3500+ applications, there is none.
I've recently been considering the idea of a new "distro" but the terms of the GPL make it look nearly impossible. According to the GPL, if you distribute the binaries you must also distribute the "corresponding source" code. I'm no expert on the legalisms, but offhand I would say that TinyCore is massively out of compliance. Don't get too mad at me, I think this aspect of the GPL sucks, and I am beginning to expect that very few distros are actually in compliance.
Frankly I think "what the world needs" is either a newer version of the GPL than GPL-3, or some kind of repository tool that would round up the source code for all the unmodified binaries that people are (illegally, according to the GPL) distributing, so the game is playable according to the rules.
Anyway I have serious doubts about the viability of the GPL as a license for free source projects because of just this issue. I've been looking at other, non-GPL kernels, but the Linux kernel seems (so far) to be the best one going... haven't looked at them all yet. And I absolutely do not want to sit down and write a kernel from scratch, that's one fugly job. So maybe I'll try to come up with some kind of repository tool, or work with the FSF folks to see what can be done, or maybe I'll just shake my head and walk away, keep using Linux but not contributing because of the risibility of the required license.
We live in "interesting times" just like the old Chinese curse refers to. <g>