About the castbars: this is normal to have two. That said, you can hide them when nothing is cast. Check the options ingame.
As for SweetFX:
Open strangeUI.zip, you will find a folder named SWEETFX.
Just extract its content to your game directory (example C:/Program files/Funcom/Age of Conan/)
If it makes your game crash, don't panic. Delete those files and it should be back to normal:
http://tof.canardpc.com/view/9b7580b...2183e00c2f.jpg
Read the second post for more info.
Thank you for using Strange UI