@Vader
It seems there are some inconsistencies with the map packs, the ones from MediaFire are different then the ones from Dropbox. So if you d-loaded from both of them you will not get all of them. Try downloading them again, and this time only from MediaFire(I'm on suspension at Dropbox, too many people has grabbed my mod from there
)
@Killer
Try using the wonderful installer Spurt made for us, just d/l the files, extract them and mount the ISO file. The installer includes all necessary files and is pretty straightforward and easy to use. Here's the linkies:
Part 1
http://dl.dropbox.com/u/17796446/Blu..._1.7.part1.rar
Part 2
http://dl.dropbox.com/u/17796446/Blu..._1.7.part2.rar
Part 3
http://dl.dropbox.com/u/17796446/Blu..._1.7.part3.rar
EDIT:
The installer includes the German compatibility patch as well, if you have the English version make sure that you don't choose the GCP files when installing it.