Okay--I have read the replies (some of which were conspicuously off-thread, folks!), and there doesn't seem to be anything I can do. Omni may be partnered with Virgin (although the Virgin program review doesn't say anything about it, the index does list it). However, I can only join Virgin after flying a minimum number of qualifying segments, according to the Virgin program review, so I seem to be out of luck. but thanks guys.
Djlawman