Thanks Jenn for splitting up the file!!!  

Acadia, just FYI in case you ever see that happen again, the file size during your download attempt showed 58.8mb (like it was on our server) but after download the file size appeared to only be 58.6. So, for whatever reason, the file wasn't completely downloading. The missing .2mb is what will casue any unzip program to think the file is corrupt.  I think our file was simply too big, and I'm very glad to know that splitting it up into two zip files worked.  

Thanks for your patience, and continuing to keep trying through the frustration. :)