In case you hadn't noticed, Macrium version 5 is available.
You can get a 30 day trial of any edition you like and run off a winpe3 boot disc.
They even provide a way to do it for you, It will d/l and install Waik - and make an iso for you - or you can add the wim to your boot menu, or pop it on a flash drive.
Easeus are doing the same thing.
Acronis have been doing it for some time - but the difference is - it's free with Macrium and Easeus.
Macrium 5 recovery media is fully backward compatible with series 4 images
If you are using windows 7 - you don't need WAIK, of course- you can knock up much better recovery media yourself: