Quote Originally Posted by Johnnycopilot View Post
I apologize if this answer is somewhere obvious. 1st, I love this plugin, it's awesome. I installed Dual Pricing V1.8 in Zen Cart V1.5 even though it wasn't 'approved' for V1.5 Zen (at the time D-P V1.8 was the latest version). Everything seems to still work great. Now that there is a newer version of Dual Pricing that is written for Zen 1.5, I would like to upgrade D-P, just in case there are unintended consequencess from the earlier install. My website is www.wholesalebodyboards.com .. Could someone please point me in the direction of the upgrade procedure for going from Dual pricing v1.8 to V2.1 please? And tell me if I should even do that...... Also, should I upgrade Zen Cart first? There is a new version of Zen Cart and I do need to upgrade that don't I? Will Dual Pricing v2.1 work with the latest Zen V1.5.1? Any help would be greatly appreciated!!!! Thanks!! :)
You're probably not getting an answer as you've gone outside what most would do. You installed a mod that was not built for the version of ZC you were using or one that anyone would be testing. Hence, no one in a similar situation to be able to help.

If you have a backup before the installation of 1.8, you should restore it and move on from there.

If you have no backup, you might see if there are uninstall instructions in the 1.8 version. If not, you will need to return any modified files to their original state and remove new files added by the 1.8 mod. I do know that 1.9 had an uninstall.sql but am not familiar with 1.8.

As per my previous post, if you really have it working, you may want to not change anything. I cannot find (nor have I been presented with) evidence that 2.1 works as advertised with a clean ZC install.