Here are links to Space Crusade, it's expansions and Advanced Space Crusade. I was very happy to find this on torrent years ago. I am sharing this in the hope that it will get more people playing this great game! I have never played Advanced Space Crusade myself, so I too am very excited to get these printed out and ready for play. Enjoy folks!
http://www.cloudstor.es/file/m1_ODk4NQ/ Base Game (35.56mb)

http://www.cloudstor.es/file/m1_ODk4OA/ Mission Dreadnought Expansion (7.95mb)

http://www.cloudstor.es/file/m1_ODk4Nw/ Eldar Attack Expansion (12.98mb)

http://www.cloudstor.es/file/m1_ODk4OQ/ White Dwarf Issues including Space Crusade Expansions (9.57mb)

http://www.cloudstor.es/file/m1_ODk4Ng/ Advanced Space Crusade (25.26mb)

Alternatively if you wish to download all of the above in one complete package, click the link below
http://www.cloudstor.es/file/m1_ODk2OQ/ Complete Package (91.33mb)
NOW ADDED SOME RESOURCES IN OTHER LANGUAGES
http://www.cloudstor.es/file/m1_OTAwNA/ Italian Resource (40.01mb)
http://www.cloudstor.es/file/m1_OTAwNQ/ French Resource (52.03mb)