i hope your motor is okay becausue now you mgith be fighting a head gasket issue on top of the following problems:\
1. the fact that your radiator is cool and your engine is overheating should immediately tell you that hot water isn't getting to your radiator.
2. it doesn't matter that it looks like the water is flowing because obviously you aren't transferring heat out of the engine
3. this could easily be your thermostat
4. your expansion tank is wrong. it should have ONE connection to it from the radiator (the small line) but instead you're flowing water through it. seal up those two big holes and just run that small line to your radiator while putting all the stock hoses back.
if you do all that and your head gaskets are okay your engine will be fine. your radiator should be too hot to touch pretty quickly.