Update: I have noticed that people are still reaching this post. There is a newer post that says that YES IT IS POSSIBLE TO CHANGE THE LOGIN SCREEN OF WINDOWS SERVER 2008. I however am currently lazy to go put a link, so just navigate through the blog. It has cookies, er... basic instructions.
Some Server 2008 users, including myself, have encountered the nasty blue logon screen. Sure, I like the fact that it's simple and different than Vista's. However, being the customization freak I am, I just have the UUUURRRRGGGEEE of changing the background.
Part 1: The 'ol fashioned way. I quickly grabbed a copy of LogonStudio Vista and noticed that where it says "Windows Vista Default"(?) there wasn't any image in there. I placed my carefully crafted logon and when it threw me to the Logon Screen... BAM! Still the blue background.
Part 2: After a big f-up with my PC, I decided to reinstall Server 2008. Frustrated with what happened before, I took a peek inside imageres.dll with Resource Tuner. And what did I found? VISTA'S LOGON SCREEN FIRST IN LINE! I once again applied my logon and re-checked it with Resource Tuner and THERE IT WAS. But I could only see the blue BG in the Logon Screen.
Part 3: Desperate times means desperate measures. What did I do? I just grabbed imageres.dll from my Vista installation and slammed it onto Windows Server 2008. The result? NOTHING.
I also tried with a modified version of imageres.dll from a certain Visual Style, still nothing.
Conclusion thoughts: What I believe that's causing all of this is the -source- of the blue background. I have NO idea of where it comes from. If someone could just find a way to remove that layer, I'm 95% sure that the real logon screen will be visible.
Note: I am not a programmer... this is just based of what I have experienced and may not be accurate. Please consult your life manual if you want to follow this all the way.