rate V4 changes to usps.php for osc2.2 in Shipping Modules Posted October 25, 2012 · Edited October 25, 2012 by beuki First off, Thank you - I could not dream of writing such an amazing module, and the fact I'm having a problem installing it has no bearing on my gratitude for the hard work that went into developing it. I am running osc 2.3 , and have installed : USPS Rates ServerV4 (for osc2.2) I didn't realize I was running 2.3 and not 2.2 at the time of install. I followed all the instructions, modified the required files, then added the new ones. I've received my User ID and Password from USPS -- turned around and emailed them back asking to move me to production, which they did. I verified the url they sent me, and it matches yours. Problem is - I go into the admin screen, edit the module, select the services, place min and max values, click save -- and nothing is saved. as a result, obviously, no shipping methods are displayed. Any chance someone knows how to fix this problem? Thank you in advance for any suggestions. **as an added note, i do not have a /includes/classes/_usps.php file - If I need it, where do I get it from - it wasn't included in the download that I can see. - Thank you again.