The latest Hijack (369) doesn't have the support for this feature enabled, so you would need to rebuild the hijack kernel from its source after enabling the PEGASUS flag, flash that resulting kernel, then continue with the "plug in USB to empeg..."

The reason it isn't compiled in as default yet is that it is very buggy and will crash your empeg, when I get it working it will be up to Mark to decide if it is enabled by default or not.