osCommerce 2.2 Milestone 2 contains lots of bugfixes, so if you run the prior version, we highly recommend updating your online store building software to version 2.2-MS2.
To update osCommerce to version 2.2-MS2:
Please make sure that your current osCommerce version is older than 2.2-MS2 before performing the upgrade.
When updating osCommerce IGNORE the following message:
Warning: Installation directory exists at: /hsphere/local/home/your_account_name/domain_name/catalog/install.
Please remove this directory for security reasons. Complete the update and only then remove this directory.