American Express Membership Rewards - Book through AMEX Travel + Get AAdvantage?

I'm a little confused about the AMEX Travel site. If I book through there I get double Membership Rewards points, but can I get AAdvantage miles too?

I don't know if they let you enter your FF number when you purchase or you can always enter it when you check in at the airport. Can someone clear this up for me?

I've purchased tickets through Amex Travel booked on AA, and gotten regular AA mileage credit for them. I've used Amex membership rewards points to buy AA coach, and then upgraded using AA stickers and/or miles. Apparently when a ticket is purchased on Amex Travel, it looks like any other travel agent assisted purchase to AA.
Be careful about fare class, though, in terms of AA mileage that will be earned and upgradeability.

If you book through http://americanexpress.com/travel you will earn one additional Membership Rewards point per dollar, but you will lose the 250 or 500 mile bonus for booking at aa.com and pay a booking fee, which I believe is $5.00 per ticket.

You should be able to calculate the breakeven ticket price point depending on the value you assign to AAdvantage miles and Membership Rewards points.

I only book through amex for the companion ticket and if I have to use MR points. This brings up more variables to consider now.

Hey there, there IS a place to enter your AAdvantage number when you book travel using AmEx. It's in one of the final confirmation screens, where you enter all your payment details. If for some reason it won't work for you, wait till you get your six-digit confirmation code from American, then call the 800 number and ask 'em to add your AAdvantage number. Should be no problem.

(This was mentioned in the similar thread in the AADvantage area, but sometimes AmEx Travel runs good package hotel/flight deals, especially if you're willing to book redeye flights. Hotel prices similar to Priceline, but you can see which hotel you're booking in advance, as opposed to Priceline. This is key for booking UK leisure travel at the moment, since hotels are effectively twice as expensive for U.S. residents.) Happy travels!