Sounds like you got it sussed anyway. Just undo the 2 bolts either side of the EGR valve. Lift the EGR up. There you should find a thin metal gasket. Leave this in place, locate your blanking plate of the gasket, nip down 1 bolt to hold the blanking plate in place and then locate your EGR valve turned to one side. Add your bolt and nip down. Job done!
Should look something like this,

:clap: