use the simple installation procedure in the readme file. Uploading a kernel to the empeg is explained in Tony's logo-editor. ( select serial port, select kernel-image file through file-dialog and upload ). then reboot... that's all
I anything goes wrong, you can allways reinstall a consumer/developer-image from empeg/rio; this will not damage your MP3's

This brings me to another question :
would it be possible to get the old kernel from the empeg over serial? this way logoeditor could first create a backup of the old kernel before applying a new one. Great for backout purposes without destroying any customizations to the root fs

Frank van Gestel