Yes we could have told you that restoring the bootloader to Windows 7 would deactivate MBR on Vista which is where Windows 7 places it when installed last to correctly configure the boot.
The path back to a dual boot now is normally to run a Repair Install
which will again reestablish Windows 7 as installed last to correctly reconfigure the boot.
However, to be sure please post back here screenshots of the listings from EasyBCD screen, and your full Disk Management drive map. Use the Snipping tool in Start menu, attaching files using paper clip in reply box. Attachment 43671