C# 2008 and C# 2010

Question

I have a question about licensing for C#.net 2008 professional edition and C#.net 2010 professional edition.

My company orginally purchased a one year license for visual studio.net 2010 professional version for me since that was the only way we could obtain visual studio.net 2008 at the time. (At the time the application that used alot of .net remoting and in 2010 that option was depcrecated.)

Now I want to develop some new software using visual studio.net 2010.

Howver now I want to use visual studio.net 2008 to support the old applcation and use visual studio.net 2010 to write the new application.

I basically want to have both versions of visual studio.net 2008 and visual studio.net 2010 on my workstation.

Is there a licensing problem if I want this to occur? If so, can you point me to a url that would explain this?

If there is no licending problem, can you point me to a url that would me show me there is not a licensing problem?

If there is a license problem, would i need my company to buy me two licenses?