>On a specific server, I cannot execute a specific operation of my framework. I get:
>
>Could not load file or assembly 'Microsoft.SqlServer.Smo, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.
>
>I believe this is because they do not run SQL Server 2008 yet. Is it possible this SMO thing is new to SQL Server 2008?

SMO was first introduced in SQL 2005 but SQL 2008 would have newer version of it.