Clarification re: Instance Name & TIM

We are carefully working through our first traversal of the v11 Upgrade, and upon my first encounter with TIM, I am wishing for a little clarification: on the Database Information screen, "Database Instance Name" field, the upgrade doc indicates item 7 of the preparation worksheet should be entered. However, item 7 of the worksheet is "SQL Server and Instance Name". not just the instance. Also, the screenshot in the upgrade doc shows what looks like a server name to me.

So, in our case, item 7 on our worksheet lists "ACTTRAIN/impresario" for server name + instance. Does TIM want:

ACTTRAIN

or

impresario

or

ACTTRAIN/impresario

?

Thanks.