I have compiled a Linux version of the plugin. It's available here :
http://racc.bots-united.com/releases..._plugin.tar.gz
Take the .so file and put it into a subfolder of your MOD folder, that you will create, for example :
/hlserver/tfc/addons/metamod/bleeding_plugin
(provided your HL server is installed in /hlserver and your MOD is TFC, else change the names)
and put it there
Then open the plugins.ini file that is located at /hlserver/tfc/addons/metamod/plugins.ini, and add a line that says:
linux addons/metamod/bleeding_plugin/bleeding_mm_i386.so
I don't remember if it's the exact name of the .so file, if it's not, change it accordingly.