To use the E: drive as a bootable drive what you would need to do is "Shrink" the beginning/front of the first (if you have more than 1 partition) on the E: drive. You would need a third party tool like Partition Wizard to do this.
This would create "Unallocated" space at least as large as or slightly larger than the partition size of your current Image Backup can restore to.
Then you would restore Windows to this hard drive (carefully selecting the "unallocated" space a the destination and the SSD drive disconnected) then booting from the hard drive strip/delete any unecessary junk and temporary files.
Then you would shrink this partition (this time shrink the tail end of the partition) to a size that would clearly fit on the SSD drive (say 80GB).
Next create an Image Backup (using Acronis) and store it the E: partition of the same hard drive (Not the best method as an external USB drive would be a far better choice).
Next use partition Wizard (bootable CD) to delete the Windows partition on the hard drive. Power down, connect the SSD drive and restore the newly creted partitions using Acronis (Hidden System,Reserved and Windows partition) to the SSD drive.
Then boot from the SSD drive.
There is some cleanup work but if you just read all of this and still want to try let me know.
JS