Happy to help you, but IMO OCZ support just got rid of you, since their advice is not your issue. Particularly if you aren't familiar with "UEFI Booting", and given your question you aren't, no offense. Plus that is more of a Windows 8 thing.
First, do you have the special driver that MUST be used with a RevoDrive? IMO, that is why Windows 7 cannot see the Revo. You must select a Custom installation, and click the Load Driver option, and have the driver on a USB flash drive. After loading the driver (do NOT remove the flash drive until the Windows installation reboots) you can then see if the Revo was formatted, as you should see partitions displayed for the drive.
About UEFI mode, while your board has UEFI firmware instead of BIOS firmware, the default BIOS settings are to run it in Legacy/BIOS mode, that is a given on all mother boards.
To be in UEFI mode, you must enable that yourself in one of two ways: By setting Secure Boot to enabled, or setting an option called CSM to disabled. Secure Boot is in the Boot menu, and CSM might be there too. If not, it may be in Advanced/ACPI.
So unless you enabled Secure Boot, or disabled CSM, you are not booting in UEFI mode, it's that simple. If you did not touch those options, I highly doubt they are set for UEFI booting, but check this anyway.
One more thing... not all boards can boot from a PCI-E slot, meaning a card or device in a PCI-E slot. My two ASR boards cannot do that. Being able to boot from a PCI-E device is not common, it is the exception. If the Revo driver makes this possible, great, but if it doesn't work, it could be the board, sorry to say.
Good luck with your Revo, they can be a pain to get working right.