I found a huge problem >.>
To start off, there was no readme.txt in the download given. All I was given was a DLL and Image_Pack folder.
Second, upon starting the dialog, I was asked to locate a image file, to be specific, it asked for itunes_bg.jpg or whatever. It then opened a dialog to find a FOLDER and not a file. So I located and clicked ok on the Image_pack folder. It said, unable to locate file, locate file? I clicked Cancel this time.

Upon clicking cancel, my mirc crashed...

Any help would be great.

Edit: Just found a new problem, maybe its just me, but every time I right click on the nicklist it asks me to locate the image file.