Yes, you will need to drill a hole though the grey plate. There are some instructions in the Router Table section of the Router Accessory Kit TGA150 manual - http://www.tritontools.com/Images/Products/media/330150_PDF.pdf
Or, take a look at the 'table mounting' section in this guide (the instructions are same for both MOF001 and TRA001) - http://www.onlinetoolreviews.com/reviews/tritonrouter2.htm
Sorry to hear about the problems registering product TSB001. Please send an email to marketing@tritontools.com and we will resolve.
All the best,