windshield replacement

This weekend my dad and I put my windshield back in my truck. We used the string method to pull the rubber over the pinchweld on the cab. After the string broke about 4 times and I had to pry it back out with a screwdriver, and I was ready to smash the windshield to pieces, we eventually got the rubber pulled over the pinchweld.
BUT, from the outside you can tell that around one of the corners it isn't perfectly seated. I'm not sure what to do to get it to seat in all the way.
Should I get a big C-clamp and pack it out and squeeze the thing in? Should I try and tap it in with a rubber hammer?
I'm afraid to get aggressive and bust the windshield and then have to start over.
Any suggestions?

Just my opinion, and probably not the answer you want to hear, I would suggest at this point you get it to someone who installs glass for a living.

I've installed glass before and even flat glass can be a pain. You can try to work the seal up over the glass or even pull it back out and start over again. If you crack the glass in the process you will be out more than what a good glass man will charge you. (Plus the aggravation of getting a new windshield).

well, the car is not mobile, so I would have to get a guy to make a house call. I'm on a major budget, and I don't think I could get a guy to come to my house for less than a couple hundred bucks. The windsheild only cost $45. It is flat glass, two sides. I don't think I need a professional, I think it's just a matter of applying pressure in the right spot to get the thing to sink into where it needs to be.
I'm just hoping somebody knows a little trick.
thanks though.

tcodi, Take an old tooth brush and form a hook on one end. Make it so you can slip it under the rubber and pull it out as you apply light pressuer on the glass to get it to set. The reasion for the tooth brush is , it will be less likely to crack the glass. Hope that helps.

And you might want to spritz in a little dish soap/water solution in there to lubricate it.

do you mean I should pry the rubber up a little from the outside and push the glass in?
I think the problem is that the glass isn't set perfectly in the glass channel of the rubber. There was another part that was like that and I just had to push on the glass a couple times with my hands and it set in right. This corner is just a little tougher.
I'll give the toothbrush method a try.
I started by lubing the channel up with soapy water, but I think it all dryed up by the time I got to that corner because it took so long once my strings broke.

here is a quick picture of what I got.
It is better than it was last night, I worked it in a little better, but
still not all the way.

from the outside

Without seeing the whole picture (being there) it's difficult to give good advice. It looks like it still needs to seat . Like Bob said, use a soapy solution and keep working it in. If you think you need to take it back out, do it slow and easy, a little at a time. When you put it back in, Get a small nylon rope about 3/16. It will stretch but wont brake. Cross your rope at the top and work out from the center, one side then the other till you work your way back an forth to the center on the bottom.

Well, I certainly learned my lesson with the rope thing.
I forwarded these pics to Steele Rubber via email, so I'm hoping somebody there might have a good solution.
I do think it is pretty simple though like you said, it just isn't quite seated yet. I did make progress last night, I'll just have to work it every day until it goes in.
Thanks