Version 1.4.0 of POP Collector now has full support for Windows Vista and above (i.e. Windows 2008, Windows 7). It can automatically install as a service in the same way as was possible on Win2k3 (using the Windows Resource Kit tools).
I am just doing some final testing, and assuming that goes fine (there are no problems so far!) it will be released tomorrow.
Also updated are the data paths - POP Collector no longer uses it's Program Files folder for data.
Attached here is an alpha release. It is entirely possible that there will be no changes between this version and the full release, but anyone wanting an easy way to install and use POP Collector on Windows 2008 needs 1.4.0 or above.