I will say that I think URC has an AWFUL website. It should simply have a pull down menu or at least a link to a page with all available remotes, broken up by Pro or Consumer models. They should also have any legacy remotes that are no longer in circulation listed with info available on them as well. Only Pro models have PC programmable software, so you would still be out of luck there, but you could easily go to the site before purchasing to help you make the right decision.
If you dig around on the site, you can find info, but I don't think you should have to dig around. For instance, I found this after putting MX-810 in the search field:[Link: universalremote.com]
In reading the text in the PDF, it clearly is geared towards pros as it talks about programming for your client, hinting at the fact it is a pro remote, but doesn't come right out and say it. At least not that I saw.
If you don't mind my asking, where did you buy your remote?