Just incase you don't have a 1.3 disk yet... Here's the relevant part of the readme file:
1.1 Credit Card Masking.
For security reasons, credit card numbers in the store database are automatically masked to ensure the security of customer information.
1.1.1 Important Note:
During installation, Store Operations will permanently mask all credit card numbers in the Store database. If you want to retain the numbers, you must back them up manually before installation. Credit card numbers on journaled receipts will not be masked.
1.1 Improved Headquarters performance
Experience better scalability, reliability, and stability with Microsoft Retail Management System Headquarters Version 1.3.
1.2 Improved integration with Microsoft® Great Plains
Better coordinate and track store and headquarters information shared between Retail Management System and Great Plains software. A Great Plains
8.0 integration add-in is available on the Microsoft PartnerSource Web site.
1.3 Delete Completed Worksheets. Use Headquarters Administrator to delete completed worksheets to free up memory and improve system performance.
1.4 Bug Fixes
These are the most significant bugs that have been fixed with this release (includes both Headquarters and Store Operations):
610 Memory leak with HQ Server and HQ Client
647 Worksheet history deletion
664 Credit card masking
662 POS idle timeout while processing worksheets
544 'Not Enough Storage' bug while downloading global customers
615 'File already exists' run-time error with HQ Server
626 Updated PO.xml file for Store Operations and Headquarters