I clik in Sync External Images link and now

http://www.tartaportal.it/productforums.php

As noted in the script I posted is a version of admincp/productforums.php

You've uploaded the admin script to your forum folder... thus the error. :D

I'm confused, it is all set up but when i click "add product" i get:

"This feature is currently not in use"

How do i put it in use?

http://www.theglockboard.com/productforums.php

Nice mod

And how do I fix?

As noted in the documents, this is not upload and go, you must configure certain options to use all the features of this mod.

Please review the install guide and your product forum settings in your Admin Control Panel -- in this case the new product forum is what's missing but there are likely others you will need to adjust.

http://www.giftery.me/productforums/howto

p.s. Thank you!

How do you fix what?

To run your mod on my site ...

That depends. What's the problem?

From your last post you had uploaded files to the wrong folder and from your previous one it's not clear if you have a setting issue, a software issue or a script issue. You'll need to run the debugger script provided for us to sort that out.

Those settings are all complete, i followed your instructions from the get go

Great... well then let's dig deeper...

That error comes up when Members Can Post Products and New Product Forum ID are not set. What values do you have for each [should be Yes and a Forum ID].