Hi Allaerd Mensonides,
I tried your plugin and everything looked great. Firstly I imported just 2 products and then inspite they have sale prices, on site was shown only regular prices. Today I imported 999 products and noticed that inspite your plugin put the prices on the right place, they was not shown on the shop page, and not only the sale price, but also the regular price. The interesting part is that when I click on the fields for prices and press the button "update", everything is ok - the product became on sale. Do you have an idea what to do? May be I'm doing something wrong.
Thanks a lot!