So Contacted there support, here is the chat log:
Please wait while we find an agent to assist you...
You have been connected to Luis.
Luis: Hello. Thank you very much for contacting Customer Support. May I have your full name, e-mail, device manufacturer and device type?
Customer: My Name, firstname.lastname@example.org, xbox
Luis: Thank you very much for this information. How can we assist you?
Customer: I'm curious about the UltraViolet Linking
Customer: Just discovered today that you offer linking to my UltraViolet account
Customer: I'm currently a user mostly through Vudu and Flixster
Customer: I noticed after linking though that I cannot watch anything that is in my UltraViolet account, is that because it's still a work in progress?
Luis: Allow me a moment as I pull up your account. Thanks.
Luis: Thank you for holding
Luis: How does it work?
Copyright ?2012 Rovi Corporation. Company confidential.
When you purchase a UV-enabled Title on CinemaNow:
?It becomes part of your UltraViolet locker
?You can playback the UltraViolet content on any UltraViolet-enabled retailer or device as long as the retailer has the title in their catalog and the content is compatible on the current device.
?You can stream your UltraViolet titles only
?You are allowed unlimited streams (but no more than 3 simultaneous streams) For additional information, please visit www.uvvu.com/what-is-uv.php
Customer: I understand that, thanks, but can we play movies that we have in our locker already through CinemaNow?
Customer: for example, I have over 175 titles already in my UltraViolet Locker
Luis: Allow me a moment
Luis: Thank you very much for holding.
Luis: Working on your issue.
Luis: Thanks for holding.
Luis: If a movie they purchased on CinemaNow isn‟t playing on another service through UV, they need to contact that support
Luis: If a UV title is greyed in their CinemaNow library, that means the UV title was purchased with another UV Service
Customer: My library is empty though, not showing any titles
Luis: One moment
Luis: Thank you for holding , may I know what username youre using to log in to your account?
Customer: It's my best buy account
Luis: No , your user name is #########@flixster.com there i see 5 pages of movies titles.
Customer: my flixster.com username is email@example.com also
Luis: Sorry working on your issue
Customer: what about that url?
Luis: Thank you very much for holding. Do you see the movies?
Customer: where should I be seeing them?
Customer: wen I go to "My Library" on CinemaNow, I get:
Customer: WELCOME TO YOUR CINEMANOW LIBRARY
Buy or rent a movie or TV show today and start building your CinemaNow library! The convenience of digital starts here:
Access Your Library On All Your Compatible Devices
Always the Latest New Release Movies and Next Day TV episodes
Pay Only For What You Watch
Watch in Glorious HD on Compatible
See List of Compatible Devices
Customer: I have yet to activate a device, and can later today
Luis: You should be logged with this username #########@flixster.com
Customer: whats the password for it?
Customer: im logged into cinemanow with my cinemanow username and password
Luis: I dont have that information we only able to view the username no password.
Luis: If you want i'll send you a password reset link
Luis: to your email firstname.lastname@example.org
Customer: so I'm supposed to login to CinemaNow via username: #########@flixster.com?
Luis: Please go to http://www.flixster.com/
Luis: And sign in.
Customer: but I already have flixster account and it's email@example.com ....
Luis: Yes , sign in with this username #########@flixster.com
Customer: I'll write that down, but that shouldn't be the answer.. just so you know
Customer: I appreciate you looking into this for me though, it was more out of curiosity, but seems as though CinemaNow has some work left on the implementation part before it's ready
Luis: We apologize for this inconvenience, also you could go to http://www.uvvu.com/what-is-uv.php
Luis: For more detail information.
Customer: Thanks, have a good day!
Your session has ended. You may now close this window.
So you can see here, I didn't get many answers. But seems as if linking my accounts created me an additional Flixster account? I can't investigate that until I'm home later today and I'll let you know then. But As you saw my conclusion it shouldn't be that way and I can only chalk it up to the fact that it's still being implemented. It could also be that I haven't activated a device yet and I will attempt that later today also. It's not really the tech's fault for not knowing either...