Problem with the thank you mod

[a2rxsavn]

Hi,

I don't know if I'm posting in the right place. I'm totally new to vbulletin (worth every single dollar I paid) but I know my way around forums. I've installed the post thank you mod and when I click on the "thank you" button the thank you doesn't get counted. And when I click on the button, it doesn't do nothing (it actually disappears). I've been to other forums with this mod and when I clicked on the thank you button it usually says something like "you've thanked such and such" and the thank you gets counted. Did I do something wrong? How can I fix this?

Thanks in advance.