Replacing damaged window bead/trim?

We are finishing our basement right now, and the other day, the drywall company came to deliver our drywall. They asked if they could remove a window to bring the drywall into the basement, and I told them that I have a walkout basement, and they could bring it in through there. But they really seemed to prefer bringing it in through the window and assured me that if it were broken, the company would replace it. So I caved and let them remove the window. I wasn't really worried they would break the window, more just worried about the quality of the reinstall job. I was at work talking with them on the phone, with my wife there on site.

When I got home, I found just as I expected, the window was fine, but now the trim around looks like crap. The little bead trim piece that snaps in doesn't stay in on the edges now, and it is cracked in a couple of spots. I spoke to my GC about it, who contracts with the drywall company, who works with the company who delivered the drywall. So I'm a couple of middle-men away from the dudes who actually damaged the trim. My GC was frustrated, because he's had to deal with this a couple times, and he has not been able to find this trim anywhere. He seemed to think that he would be able to fix it so it would look good, but I was wondering if anyone here knows what this trim is called, and where I might find some. I'd really like to hold the company that delivered the drywall responsible, and make them fix it, but not sure what they would do anyway. Replace the whole window? I doubt it. Anyway, it's probably not that expensive a fix, and I'd almost rather fix it myself. Any ideas? Here are a couple pictures:

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Your first step is figuring out the brand and model of window. Look for a gold AAMA/NFRC sticker on the frame somewhere... usually on the top of the frame when you open a window. If you can't figure that out, you are probably SOL.

It looks to me like they used "sill expander" to trim the interior of the window. That's pretty crappy, and if you are finishing the basement, i'd recommend you remove all of that sill expander on all sides of the window before you trim the windows with either wood jambs or a drywall return, depending on how they will be trimmed.

 

I agree with XSleeper.
Something just looks wrong about that install.
Back up and take a picture of the whole window inside and out so we can see better what type window you have.

 

Ok, so looking at the gold sticker, and a little googling, I think it's an Amsco window, but not sure what all the other numbers are. Series V2K-SF? Anyway, yeah, I can't seem to find that trim anywhere. But you are right, it is crap, and I'd love to do without it. However if we just removed it, the casing around the window would not be thick enough to reach past the gap and cover it up. I suppose some other method could be used to fill the gap. Here are some more pictures of the windows. Haven't gotten any from the outside yet, I'll try to get one tomorrow. Sorry, the only pic I could find without framing around it is a really crappy picture. Click on the pics to enlarge.
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And here's a closeup of how it looked before they screwed it up:
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You would remove the vinyl trim... then make sure the window is insulated. Add a 1x4 onto each side of your rough opening. Then you would either install drywall and l-bead against the window, or if you prefer a jamb and casing, build your jamb like a box, install that into the rough opening with shims, then apply casing.

If you want more pieces of sill expander, contact your window company directly.

 

Ok thanks guys. Yeah, I guess it will be easiest to do that. Just remove the trim, and build up the casing to cover the gap. BTW it's not a big gap, barely big enough to snap the trim into, not even enough really to fit some Great Stuff into. So not sure it needs much more insulation. However I will probably at the very least caulk the gap, so no air gets through.