Would you please be so kind and attach the newest version here? I cannot find it anywhere, the one on your site is from September 5th/6th and that's the one causing problems, thanks.
Of course! Here is the final release build. I looked at the repo and discovered I was an idiot and had forgotten to update it; the repo still had v2.0, exactly as you said. My fault. Try this latest version and see if you have success; it has been fully vetted on my TiBook. Some testing questions I'd have for you once it's installed:
1) If you boot the AlBook with the USB card inserted but no devices attached to it, does it recognize your USB thumb stick as USB 2.0 once you plug it in? What about on your TiBook?
2) Does your wireless mouse receiver work on the TiBook in the card WITH the extension installed there?
Trying to determine the exact conditions that cause attached devices to die; maybe it's the mouse receiver specifically that doesn't like the extension, or maybe it truly is the extension itself. It's tough because I haven't been able to replicate on my TiBook. Let me know what various combos of devices and/or the extension on/off does for you. If USB 2.0 is working, you'll know it because it will give your mounted thumb stick a special USB 2.0 icon on the desktop.