Hi I'm having a problem trying to auto-scale a company logo (using equations and a design table)

When I import the logo as a .dxf and select 'add constraints', 'import dimensions' and 'merge result' SW 2010 (edupack) crashes.

However when I choose to only 'import dimensions' and 'merge result' from the .dxf file, the logo can only be scaled when i select the entire sketch and 'scale entities'. This wouldn't be a big problem if my assignment didn't tell me to use a design table. Since the points in the sketch don't relate to each other, I would have to make equations for all the points in the logo to keep the same shape when I choose a different scale for my model.

So does anyone know who to import a logo to a sketch, in such a way that you can use equations to make the logo automatically resize when you change the size of you model using a design table?