The Maxblast 5 and Seagate Disk Wizard work ok on my 7 x64.
The WD looks to be the version allegedly giving trouble on 7.
Macrium Reflect Free is much better than any of those. Macrium Reflect FREE Edition - Information and download
It is more efficient - smaller, faster , and allows scheduling as well as mounting to extract individual files.
It works with all makes of drives - and works perfectly on 7 x64.