Can't access remote desktop

[gizmodesign]

Hi,

I'm on a Mac and have tried Mozilla, IE, Safari, Netscape and Firefox and can't access the remote desktop. It keeps saying, "java.lang.classnotfoundexception: net.propero.rdp.rdesktopapplet.class"

Is there any way to get around this? I really need to run an exe and can't figure out how else to do it!

Thanks -