If Glass2K installs wit it Just disable it and there wil no longer be any transparency! I don't like it either, as it even shows thru when youe viewing videos.
Try downloading it right from this page: http://www.majorgeeks.com/files/details/seven_transformation_pack.html
This is the one to get: http://www.majorgeeks.com/files/details/seven_transformation_pack.html
Try 5.5 : http://www.majorgeeks.com/files/details/seven_transformation_pack.html
Here's the Link for Microsoft IE 7 : https://support.microsoft.com/en-us/help/17621/internet-explorer-downloads
