The eject fix will stop the xbox resetting when you eject the dvd tray, if you use the other M7, the ejecting the dvd tray will reset the xbox like normal.
And XBtool isnt complecated, just load in you're BIOS, click the tab at the bottom saying 1024k, then click on save. Thats all it takes to make your 256k BIOS a 1024k BIOS.