Great software, thanks -- want to keep using it!

My wife used Pocket Cook on her Treo 300, the standard resolution for OS 4 version.  Then I got her a Treo 600, and uninstalled the Pocket Cook in it's entirity.  I reinstalled it on the PC and selected the Palm OS 5 version for Standard Resolution.  Upon re-registering and downloading the PDA software it only downloaded the OS 4 version again.  How do I get it to download the OS5 version?

As I stated in my original post, I did this (twice).  I changed the PDA type each time and it didn't work.  While in the PC version, it does state in the lower right corner that I'm supposed to be using the OS5 version, but when I install it to my Treo 600 the installer says "this version is for OS4? 

What's the next step?

The only one in the directory is "pcook7sr.prc"

After each re-installing and selecting "OS 5 standard res," I went to the PDA menu and clicked "Download PDA Software."  Then I waited for a few min while it downloaded.  Then I clicked "Install downloaded PDA software." 

I'm running WinXP SP2.