@pw EDEN, the placement of the Express Checkout button is by design in the plugin. One of the primary benefits of Express Checkout is that your buyers don’t have to fill out the checkout form, so they wouldn’t be scrolling back to the top…they would simply never scroll down. All you have to do is click the button to get straight into checkout. No filling out forms, so conversion rates typically go up. This is why you have the option to display the EC button on product pages, too. From there they could even skip the cart page, checkout page, and everything. They’d go straight into purchase directly from the product page.
That said, I have had lots of requests to add it into the regular payment gateway options on the checkout page like you’re asking about. As such, I’ve added an option into the plugin so you can choose whether to have the button at the top, at the bottom with the regular gateway options, or both.
This isn’t yet included in the current 1.1.5 release, however, it is already completed in my development repo. If you go there and download that zip file, then upload it to replace your current plugin files it’ll give you the new option. It’s not the official release yet, but it has been fully tested.
When 1.1.6 is released it will include that as well as a few other things, and then 1.2 later will be a big update with lots of new stuff.