Welcome to the site. We have lots of Metro fans here
As far as the heat goes, you either have trapped air in the system or a clogged heater core. Trapped air can be burped by jacking the front of the car so the rad cap is higher than the engine and leave the cap off an run it till all the air comes out of the system.
Here is my Metro story................
http://ecomodder.com/forum/showthrea...ject-2936.html