You should have a digital output which uses a 3.5 mm connector, all you need to do is buy a 3.5 mm to RCA (Mono) converter, then you should be able to hook it up to the digital inputs on your speakers. To find out more on how to do this, visit Creatives <A HREF="http://www.soundblaster.com/manuals/AudigyPL.pdf" target="_new">Web site</A>.
If it works for you then don't fix it.