By "global values" do you mean linked values? Did they change the name and I failed to notice? Anyhow, find an instance of a dimension where it is used and link that into the design table in the usual way.
You can get these to show up in design tables. Click on a dimension, then add equation, like "length=4". Hit OK. Click on the dimension again, and link it's value to "length". Hit OK. Insert a design table. It should give you the option of picking length@Sketch1 as a column.
Then again, maybe this is not what you are trying to do. I may be out in left field on that.
Yes, I'm aware of this, but I don't want the "@sketch1" portion. You are referring to a linked dimension, I'm referring about the global variables in Solidworks 2005. I would be nice to control these via a design table.