Define Mainpage not working in admin

[JemCraft]

Hi, I have installed the contrib define mainpage, but when i click on admin-> catalog-> define mainpage, I get the following error:

 

[an error occurred while processing this directive] http://www.jemcraftmemories.com/catalog/admin/categories.php /catalog/admin/define_mainpage.php 404

 

Can anyone help me at all?

 

Thanks

Jemma

[JemCraft]

Hi I still cna't get this to work, any ideas?