Do you mean Camera Raw 5.0?
Hmm, reading through the comments section of that website it seems you are not alone in your problem kanuck. Unless you also asked for help there too?
"Matt, thanks for the pre-sets. I'm having trouble loading them into ACR. I'm using Windows Vista. In the ACR Camera Calibration tad, I clicked load settings, navigates to the decompressed files...it looks like I have to choose one at a time. It says open. I click open but then it doesn't show up inthe preset menu. I must be missing something. Any suggestions?"
Loading the presets should be fairly easy. However I've never used the particular set you are trying to use. I can't think of what else to suggest other than to email the developer and ask him for help.
Are you running a windows 7 machine?