Short and usefull by rhea:

OSP Q3 1.03 Released!
Ready to go! Grab it from the Downloads page.
Installer:
OSP 1.03 Patch
OSP 1.03 FullVersion

Zipped:
OSP 1.03 Patch
OSP 1.03 FullVersion

Mirrors:
PlanetQuake3.net
Cached.net