1999 waterpump?

I replaced the waterpump on our 3.1 v6 yesterday. This is the first "round" waterpump that I've installed. Others bolt on to the front of the engine with set shapes and hole patterns and the "weep-hole" is always on the bottom. Well this pumps hole pattern wouldn't line up with the weep-hole on the bottom but lined up with weep-hole at the top. Seemed strange to me, but is this normal?