Ophelia by Maggie Sottero

Maybe RK Bridal? They have the biggest selection of Maggie Sottero gowns I have seen. You can also go on the website (www.maggiesottero.com) and send them an email asking what stores have the gown.

ETA: Maggie gowns take about 4 months to arrive so if her wedding is after June she should be fine (4 months for delivery and 1 month for fittings)

http://www.maggiesottero.com/locator/new/locator.php

I hope this works, if not go on the website and do a store locator.

Try Charmet in Bayside.

Charmet can actually order any dress for you (as long as they carry the brand..)