Alcan window sash guides, balance tops, and weatherstrip

Thanks for contacting us! We can definitely help with this hardware. I'll go in the same order as your photos, left to right.

1. This top sash guide closely resembles our 18-161. I am very confident that this will work for you as a replacement.
2. These balance tops look like our 19-005. You can install them to the top of your balance with a rivet like our 62-005. I will also share a video at the end of this post that shows you how we like to do it.
3. I cannot identify your weatherstripping from this photo. I'll need you to remove an undamaged sample and show us a clear shot of its end profile. I'll also need to know the shape and size of the end profile. Please make sure the sample is whole and undamaged; we won't be able to ID a match if it's too deteriorated.

Hopefully that covers everything. Let me know if you had any questions! Here's that video I promised:

It is possible that the original installers used caulk or some kind of adhesive to keep the glazing bead secured, but I can't be sure. It would be very frustrating if they did, especially with how brittle it is. Unfortunately, without an intact sample, it won't be possible for us to identify a match. 

If you aren't able to remove it, then your next step should be to contact a local professional to come take a look at it. They may be able to get it out and determine what type you need.

If you aren't able to get someone to look at your windows, then we have a few tutorial videos that you might find helpful. These pretty much just cover what you've already tried, though. There's not much of a trick to it beyond these instructions.