Hi Bryant,
It appears to be a bug due to case sensitive search while replacing a part of the reporting url.
Could you try the following?
1. Go to Kaseya VSA console -> System -> Server Management -> Configure
2. Click on Change Reporting config button to open the reporting configuration dialog
3. Click on edit button to edit the MicroSoft Reporting services Hostname
4. Update the hostname to http://3spks02/reportserver/reportExecution2005.asmx (Please note capital E in reportExecution2005.)
After the above steps register the reports.
Please let me know if this works for you.
Ganesh