Hi,
as stated in the methodology document of 2008, vendors pay for the services.
For the public main test series, every vendor that applied for inclusion (if he gets included) pays the same fee, in order that we can cover the costs of the tests etc. Of course, it does not have any influence on the results. Comodo never applied for the public main test series, as in that case results are being published in any case.
Instead, Comodo paid us several times for internal/confidential single product detection rate tests. As they are confidential, we can not publish them if Comodo does not want to. Comodo decided to keep all tests they commissioned to remain internal. If they would have wanted to use them in marketing (i.e. use the logo etc.) and to have it published together with a review, they would have had to pay additionally.
There are many wrong perceived things written (in a misleading way) by Comodo, so we may reply soon to clarify at least some of them.