Keep in mind that there are two companies -- the
manufacturer, who the OP said was on Oahu, and the
retailer, who the OP said was on Maui -- involved here. It's clear, that the OP did not buy the ukulele directly from the manufacturer, but it is not clear whether the ukulele the OP saw online was on the manufacturer's website or the retailer's website.
The manufacturer's site seems to have old photos. The
tenor pictured has a bow tie bridge and chrome tuners, and the basic concert and sopranos pictured have square bridges that I think may have preceded the bow tie bridge. It seems odd that the manufacturer would tout a design change on its website ["Check out our new bridge design! It is still made of solid Hawaiian koa and our name is now laser engraved on it. The new bridge is also designed for lace tying rather than using knots. They will only be available on our soprano and concert scale models." - November 16, 2010 post] without changing the photos. (I believe the manufacturer later made the new bridge design available on tenors and discontinued the bow tie design altogether.)
However, I think it actually matters more what ukulele is pictured at the point-of-purchase website, especially if that's the photo the OP saw when he was buying his ukulele. A retailer's web page for an ukulele basically says "we are selling
this ukulele" or, if it identifies the photo as being a stock photo, perhaps "we are selling an ukulele
very similar to this." This is why some retailers expressly state on their websites "this is a stock photo. Appearance of the actual ukulele purchased may vary." (With ukuleles, this tends to be a bigger issue for wood grain than for bridges or tuner machine buttons.) If the OP wanted to be aggressive with the retailer about this, he could call or write the retailer to say "this isn't the ukulele I thought I was buying. The one shown on your site had a bow tie bridge and chrome tuners, and the web page said there was binding on the fretboard" and try to get the retailer to either refund his money or find him an ukulele that looks liket he one pictured on the retailer's website. The moral of the story, I think, is for a buyer to determine what the retailer is saying when it posts a photo of an ukulele for sale and, as I mentioned earlier, to ask the retailer to email a photo of the actual ukulele for sale.