Hello ppl got a mk1 punto sporting

it just come into winter and problems start ! lol

when i start my car up on a morning and set off the car bogs down in every gear, so i after let car warm up for 5 mins before going anywhere,
also if u rev it up once just started it miss fires, but once its warm it fine>?
any ideas?
is it choak not working right?

Also my heating system will not blow out warm air when i am stood still, i after be driving for it to be warm!? any ideas again?

Cheers inadvance