Paragon B&R - maybe overwrote a partition. pLs read, need advice asap

Hi
Potentially really bad news here.

I thought I would do a backup boot n other partitions on drive 1 (Win 7 32bit) and used the One Button Copy Disk command on Paragon B&R 10 thinking it would copy to a previous backup. It didnt. It copied and (maybe) overwrote an active partition on drive 2. But maybe not...

When I look in Paragon the drive 2 overwritten just says its a basic hard disk 1 (ATA Toshiba DT01ACA3 SCSI Disk Device) of 3 terra and there is nothing on it. It also does not have a drive letter associated.

When I look on EaseUS Partition Master Pro Edition v9.2.2 I can see it all as Disk 2 with 4 active partitions and an unallocated space of 2TB.

This is where I might get out of jail -
When I installed this 3 terra Toshiba 7200 SATA I soon found that win32 cant handle anything over 2 terra with a MBR and that there is GPT to get all 3 terra usage. Tried that and I couldn't get it to work so I ended up reformatting back to MBR and made a partition of 2 terra (thats important for later on) with unallocated space of about 750Gb.

The little hope I have of getting back my files is this - seems Paragon Backup & Recovery MAY have chosen to make the 4 new partitions - cloned from the disk C/boot is on, to the unallocated space on the three terra - and those 4 partitions amount to 400 Gb. That left an unallocated partition of 2 terra, with no drive letter, no nothing - dead space I cant use. Im taking it to a pro shop for surgery hoping this -

1. examine the clones to see if there is anything of my lost files there - as evidence that the clones did in fact overwrite. If true, try to recover with R-Studio.

Option 2. If there is no evidence there, Im thinking we delete the cloned partitions, wiping the space out so it becomes the unallocated space by assigning a drive letter to the 2 terra space. Im wondering if all my data might still be intact on that space by revealing it that way. The original 2 terra had 740Gb of data on it and the co-incidence that this unallocated space has the same amount (according to R Studio - a scan I did last night) may indicate thats where my valuable data is. ....Here's hoping.

Any thoughts on my approach?