Getting old mac to use new monitor

Hi all,
work has been given a old PowerPC G4 and my boss wants to use a spare Cinema Display as the monitor. Given that I'm the "IT guy", I've been given the job of getting it to work.

So what I have on the video output is what looks like a female ADC port and a female VGA port and the Cinema Display has a built-in male DVI-D port.

What are my options for getting the PowerPC to use the Cinema Display?

Cheers,

If the monitor has only DVI-D, you cant use a converter for the VGA, as that would require DVI-I.

The Apple website mentions a "Belkin ADC to DVI Connector Cable T2774G/A", if you can find one, it might do the job.