has anyone done a DIY window replacement on the front, passenger door

i had my main glass put in by autoglass but it was going to be weeks before they could source the smaller glass so, i got one from bellhill and i dont think A/G will put it in for me under the original job sheet. i couldnt get through to them today by phone even though they are normally open on a sunday. anyone got any pointers?

regards
alex and jan.