UPDATE: Somewhere in the time since this post was written, aMule released a new version 2.3.1 which resumes support for Tiger. Cool!
I was looking for an eDonkey client because I wanted to try out eD2k links to quench my thirst for old movies that you can't find anywhere else but, well, the eDonkey network. I had used aMule a few years ago, but I only used it to download through searching the network through the client. I never got around to downloading directly through eD2k links. So I went searching for the latest version but found it required Leopard (An OS Too Far) and couldn't immediately find the last version for Tiger.
Well, after much searching and scouring, I found the download link to aMule 2.2.5 here. Download the "aMule-2.2.5-OSX10.4+.dmg" file. It's a universal binary and it runs on Tiger. Happy hunting.*
*And on the whole downloading-copyrighted-material thing, I sort of go by the copyright laws we had before Hollywood money bought off Washington and purchased legislation to ensure Disney owned Mickey Mouse's copyright into perpetuity. If the makers of a movie, for example, are all long dead, I think it's okay to download a TV rip, at least.