bad resolution on effect on top of vectored image

Hi guys

As you all know by now, I am by far a wizz-kid on Corel !

I am playing with this at the minute but thought I would upload an image I am having trouble with. You were great help recently and taught me 'flattening' with effects on top of other images - my problem this time is that we need a ghosted part of an image - my boss has done a 'glow' rectangle but i cannot 'flatten' it as it is sitting on top of a vector image!

I am going to try and split the vector image and fill it with a fountain fill but unsure if this can be done or if you guys know of a much quicker way, like 'flattening'?!

Thanks in advance for any advice
Sammi