If the software that came with the Epson doesn't include a plug-in, then there isn't one except for those that other developers have made (VueScan, SilverFast). Adobe doesn't provide them, each scanner maker does.
However, a plug-in isn't the only way to scan into Photoshop. You can scan with the software that came with the V750, and set the software to save scans in a specific folder. You can then simply drag from that folder into Photoshop. I like to have Adobe Bridge pointed at the scan folder so I can see, keyword, and preview any of the scans as they show up, then edit any of them in Photoshop by pressing Enter/Return. Previewing your scan folder with Bridge is also a great first step to fast editing of scans in bulk in Adobe Camera Raw.
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