1997 Dodge Caravan could I get a little help please

Engine Cooling problem
1997 Dodge Caravan 6 cyl Two Wheel Drive Automatic

ok, I have a 97 dodge grand caravan about 2 months ago well a couple days ago, "4/20/09"
it started running hot the radiator hose was pretty
hard so changed out the thermostat.I also notice the fan wasnt working because the fuse had blown out, well I replaced the fuse and every thing was
good at least for a couple days, the rad fan fuse blew out again, and of course the the car started runnig hot, I replaced it again, and 30 minutes later it blew out again and stared runing hot can any one tell me if I need to replace the fan motor or is it because the van is running hot the reason the rad fan fuse keeps blowing out