The activation screen or tutorial doesn't fit your computer screen?
Your activation screen looks something like this:

Ok, let's sort this out for you.
If your tutorial screen is simply pushed in one corner, so that you can't read parts of it, that's easily fixed:
You can move the tutorial screen around by simply clicking on the very top of the frame (the gray bar), keeping your mouse key pressed and just moving it around.
Now, in case the page is simply too big and doesn't fit on your screen, please make sure your screen dpi is set to 96 dpi.
Here is how you do that in your windows xp:
- Right click on your desktop screen
- Click "properties": The Properties window comes up
- Click "Settings"
- Next click the advanced button
- In the new window select the General Tab
- Now select 96 dpi from the drop down menu
- Click "apply" and then "ok"
For Windows Vista follow these instructions:
- Right click on your desktop screen
- Click "Personalize": The Personalization window comes up
- On the left hand column under tasks select "Adjust Font Size (Dpi)"
- Select "Default Scale (96DPI)
- Click "apply" and then "ok"
That should get it working for you.
Have a great day!