McGrath of Harlow

"intelligent design" starts at least formally from consideration of scientific evidence, and draws from
this the conclusion that the explanation for this is an intelligent designer, in other words "God".

I'm afraid not, McGrath. The fact that it's called Intelligent Design is a bit of a giveaway.

From this website - http://www.intelligentdesign.org/whatisid.php

What is intelligent design?
Intelligent design refers to a scientific research program as well as a community of scientists, philosophers and other scholars who seek evidence of design in nature. The theory of intelligent design holds that certain features of the universe and of living things are best explained by an intelligent cause, not an undirected process such as natural selection. Through the study and analysis of a system's components, a design theorist is able to determine whether various natural structures are the product of chance, natural law, intelligent design, or some combination thereof. Such research is conducted by observing the types of information produced when intelligent agents act. Scientists then seek to find objects which have those same types of informational properties which we commonly know come from intelligence. Intelligent design has applied these scientific methods to detect design in irreducibly complex biological structures, the complex and specified information content in DNA, the life-sustaining physical architecture of the universe, and the geologically rapid origin of biological diversity in the fossil record during the Cambrian explosion approximately 530 million years ago.

In other words, they start from the assumption of intelligent design (and, therefore, an intelligent designer) and then go and look for evidence to support that idea.

Similar things from the Dicovery Institute here - http://www.discovery.org/csc/topQuestions.php#questionsAboutIntelligentDesign

No one may be asked to treat Darwin as a belief system not open to revision, but sometimes there is a tendency to do so, as with other 19th century giants, such as Marx. "So as not to gainsay Darwin" sounded as if Steve might be in danger of falling into that.

It does rather, doesn't it.