I'm happy to report that after all of the issues that came up during the SP 4 year end update and .net 3.5 sp 1, the Forms W-2 and 1099 printed perfectly.
We did have a problem with the Reports dictionary, but that was resolved by creating a new reports dictionary and importing the reports from the old dictionary using the Import function within Report Writer. The GL trial balance report was DOA and had to be redone. Most of the previous customizations, which were mostly calculated fields, could be copied from the package files created as backups. At least all of the SOP and POP reports came through the update error free.
So, at the end of the day each of the workstations were using build 324 of both the Dex.dic and Dynamics.exe files. From now on I'm going to jump right to this configuration. I will test it again on 24 workstations over the next week or two.
I'll let you know what happens.
Until next post!