If it has a four pin connector available, you can use that, the guide pin will be in the right place. There are dozens of adapters out there to let you convert a standard 4 pin Aux power connector into multiple 3-pin fan connectors or adapters to convert the single 3 pin you have into 2 or more fan connectors.
http://www.frozencpu.com/cat/l3/g47/c121/s424/list/p1/Fan_Accessories-Fan_Accessories-Multi_Fan_Ports-Page1.html