GIMP Plugin Registry

Hello, I would really appreciate some help finding a Photo-filter plug in to selectively tone images. I have been looking on the net for a couple of days now and have not come across a single plug in that does what I need.
Although I'm pretty sure there must be something that I haven't yet come across.

I am using GIMP 2.6.6 on O SX Leopard and I'm looking for something like the virtual photographer photoshop plugin. Here are a couple of pages of sample images which is the kind of thing I am looking for to use with gimp;

http://www.optikvervelabs.com/samples.asp

I really wish there was a way to get this plugin to work on OSX but I haven't been able to find a work around as it is a photoshop filter released only for windows. Is there any way around this? I know you can get photoshop filters to work in GIMP on windows if you install Pspi.exe, but is there anything that performs this function for OSX?

But anyway if anyone knows of a similar filter to virtual photographer for gimp that will work on a mac I would be very grateful.

Thanks in advance for any suggestions.