I was using the USPS Rate V2....v1.7 for the longest time. However, I have noticed that my customers aren't able to use the Domestic First Class option. The option is shown without any words beside it, and when selected the most expensive option is added instead. So I upgraded to http://addons.oscommerce.com/info/8702 today.
Here are my issues: A) the new files are WAYYYY smaller than the old files (yes, I double and triple checked them) B) the new files are giving me the following error.
Fatal error: Call to undefined function tep_cfg_usps_services()
I know this is basically saying that there is something missing, but I do not see anything that could be missing in the add on files.
Am I completely spacing this? I normally can pin point the error pretty quickly.