HypnotizedZebra

Ok so im running mcpc plus (with forge). Everything is working fine until i install flans mod... When you put flans items in your inventory and right click, they disappear without being placed. When i try to spawn a flans item from NEI, it tells me"There is no item called #" as the # being whatever item i try to spawn... This is getting really frustrating because im not getting any errors in console... Please help!