Ok I've searched everywhere for an answer and can't seem to find an answer.
I've installed VS 2010 and with it came SQL Server 2008 Express. I am currently trying to install SQL Server Management Studio 2008 and it won't give me the option to install.
At first, I thought it wanted me to install SP1 first.. but it says there is nothing to patch!
My SQL patch version: 10.1.2531.0
EDIT: This is the installer I'm using:
http://www.microsoft.com/en-us/download/details.aspx?id=7593
Best Answer
I was having the exact same problem with my installation for SQL Server 2008 R2 RTM - Management Studio Express. Go back to the "Installation Type" step (the previous one), and closely read the text under each radio button. The option under the "New installation or add shared features" reads:
You have to select "New Installation", and not "Add Features", as counterintuitive as this may seem.