Stop using Register button or open in new window?

Hi there,

i like the Event calender very much, but i have a “small” Problem. In the Detail Page of each Event is the Link of the Website included. Under the “more Info” as soon there is a link the “Register button” shows up and then we have actually 2 links in the View of each Event, which is btw. a bit confusing. Besides that the Regsister button opens the link in the same Window, even if i mentioned in the “More Infos” Link to open in a New Window.

Therefore i have a simple question:
How can i deaktivate the “Register Button” or is it possible to set up the Button to show the link in a new window (we can change it in PHP code if you let us know where)? Thank you in advance!