sure whats the problem? im using a Hero. just extract the zip and place the ogg files to your sdcard under media/audio/ringtones. you can use Astro file manager from the market to open the zip and extract them etc. hope this helps!
+1 on the Inc here, I have been wanting those DRROOOOOIIIDD sounds on my phone (don't know why they're not there since this is a VZW thing, but anyway)... i don't see the path mentioned above when the card is mounted to my PC like a disc drive. Is this different for the Inc?