Canon has announced a new version of Digital Photo Professional. It now supports older cameras.
From Canon USA :
Changes for Digital Photo Professional 4.8.30 for Windows :
Newly supported EOS D2000 *, EOS D6000 *, EOS D30, EOS D60, EOS 10D, EOS Kiss Digital / EOS Digital REBEL / EOS 300D Digital.
Added Partial adjustments functions (to only 64bit OS).
* Can now handle CR2 files converted with the CR2 Converter.
Download - Canon Digital Photo Professional 4.8.30