Hey Jim, thanks for you fast reply and help with this.
I already had Vendor Shipping enabled, and the error was due to me putting the modded table module in the regular "shipping" directory. Thankfully, before I mod anything I always keep backups :-)
I just put back the original table file in the shipping directory, and put the modded table file in vendors_shipping. No errors on the admin side, but now during checkout, it won't get past checkout_shipping.php. I get "Error: You have not selected a shipping method for all groups of products. Please select one shipping method for each group of products below."
I sure hope I didn't miss any files to mod. When I installed I went over everything with a fine tooth come, considering the 134 files.
Do you have any suggestions on trouble shooting which mod files are missing, if in fact, any are missing? Also, in admin, under shipping modules, when Vender Shipping is enabled, I don't see the options for the new modules to install. Since, MVS 1.2.3 was intended for OSC 2.2 -- when clicking on Vendors tab in admin, the left column displays differently, too. Not sure if there should be any sub-links under the vendors tab in admins? I currently don't see any.
Thanks and all the best,
Clarence