Sandra, I'm so sorry to hear that! Grrrrrrrrr. In Canada, Sunview Industries is the primary supplier of RV
windows. But
windows are not specific to a brand of trailer, so you could check at
Trillium too. Here's a link to the Helpful-Links page:
Windows and Window Parts
You also may want to check with Paul Neumeister:
Fibreglass RV Parts and Repairs
Perhaps others have idea too