If Toshiba replaced the HDD, did they install Windows 7 again? If the HDD was failing, were they able to use a back up image?
Regardless, looking at your IRST UI screen shots, are you sure your SATA mode is set to RAID? Usually when in RAID mode, the IRST UI will have a Create button between Status and Manage. That might not be the case with just the two disks you have now, but you should check that Toshiba did not reset the SATA mode to AHCI in the BIOS when they replaced the HDD. The SATA mode must be set to RAID in order to use acceleration. If Windows was installed with the SATA mode set to AHCI, you cannot simply change it to RAID. If you do, the PC won't boot or will BSOD when it starts.
Some other things that may keep you from accelerating your HDD:
The SSD used for caching must not have any partitions on it when you configure the accelerated system. You've already created two partitions on the SSD, which would not allow it to be used as a caching drive.
Is there a Recovery volume on the HDD? If so, acceleration is not possible.
Acceleration is not possible if the storage system has more than four volumes. Since you now have two on the SSD and if the HDD has two or more, you can't accelerate that system.
On the IRST UI screen, have you ever clicked on the Help button? If not, that will open a new window with detailed instructions for accelerating the storage system, and other instructions about managing RAID volumes.