Which oscam do I choose

Hi , looking to update my oscam however there is so many to choose , could someone plz advise me out of all these which one applies to my setup
Oscam on pc running Ubuntu 12.4 (32 bit)

Thanks

oscam-svn8015-arm-coolstream-webif-libusb-Distribution.tar.gz
oscam-svn8015-powerpc-tuxbox-webif-libusb-Light.tar.gz
oscam-svn8015-powerpc-tuxbox-webif-libusb-ssl-Distribution.tar.gz
oscam-svn8015-powerpc-tuxbox-webif-libusb-Distribution.tar.gz
oscam-svn8015-powerpc-tuxbox-webif-Distribution.tar.gz
oscam-svn8015-x86_64-pc-linux-webif-libusb-ssl-Distribution.tar.gz
oscam-svn8015-x86_64-pc-linux-webif-libusb-Distribution.tar.gz
oscam-svn8015-x86_64-pc-linux-webif-Distribution.tar.gz
oscam-svn8015-arm-coolstream-webif-libusb-Distribution.tar.gz
oscam-svn8015-powerpc-tuxbox-old-webif-Light.tar.gz
oscam-svn8015-powerpc-tuxbox-old-webif-ssl-Distribution.tar.gz
oscam-svn8015-powerpc-tuxbox-old-webif-Distribution.tar.gz
oscam-svn8015-mips-wrt54g-webif-libusb-Distribution.tar.gz
oscam-svn8015-mips-tplink-webif-libusb-Distribution.tar.gz
oscam-svn8015-sh4-amino-webif-Distribution.tar.gz
oscam-svn8015-mips-fonera2-webif-libusb-Distribution.tar.gz
oscam-svn8015-mips-tuxbox-webif-libusb-Light.tar.gz
oscam-svn8015-mips-tuxbox-webif-libusb-ssl-Distribution.tar.gz
oscam-svn8015-mips-tuxbox-webif-libusb-Distribution.tar.gz
oscam-svn8015-mips-tuxbox-webif-Distribution.tar.gz

Quote from Maverick_BK

oscam-svn8015-x86_64-pc-linux-webif-libusb-Distribution.tar.gz

doesnt work for me i end up with usr/var/bin syntax error "(" unexpected