Right now, the 'best' way to run GrooveWalrus using everyone's Linux distribution of choice is to use Wine. It's actually easy to setup, here are the steps:

1. Open the 'System' menu and select 'Synaptic Package Manager' from the 'Administration' sub-menu.
2. Enter your admin password at the prompt.
3. Enter 'wine' in the 'Quick Search' text field on the 'Synaptic Package Manager' form.
4. You want to install 'Wine 1.2' (or later version), so right-click that and 'Mark for installation' and apply the changes to install it.
5. After Wine has installed, download the setup.exe for GrooveWalrus.
6. Right-click on the setup.exe and select 'Open with Wine Windows Program Loader'
7. After the install completes, use the GrooveWalrus shortcut to run.