wing kits on the 4 GBU-15 versions

can you clear me on the different wing kits on the 4 versions of GBU-15 : is it an only one combination or it is free between the BLU-109/MK84 and small/large tail kit and seekers ?

http://www.fas.org/man/dod-101/sys/smart/gbu-15-dvic479.jpg

http://www.fas.org/man/dod-101/sys/smart/gbu15.jpg

http://www.fas.org/man/dod-101/sys/smart/gbu15_6.jpg