The reasons given for ID not being creationism fail:
The term "Intelligent design creationism" is used because it is
descriptive. The fact that the ID movement does not use it
themselves means nothing, because the movement is based on
propaganda and image manipulation (Branch 2002; CRSC 1998; Forrest
2002).
Claiming this reason is also blatant hypocrisy. ID members are
relentless in referring to evolution as Darwinism and
evolutionary scientists as Darwinists, despite the fact that
evolutionary scientists do not use those labels in such a way.
There are differences between ID creationism, young-earth
creationism, old-earth creationism, gap creationism, Vedic
creationism, and other forms of creationism. Still, they are all
creationism.
Since ID has no science program at all, their last point is
meaningless.
Intelligent design is defined and treated as a form of creationism by
its supporters. (The ideas listed here are prevalent in the ID
movement, but there may be individual members who disagree with some of
them.) Intelligent design's main characteristics -- rejection of
naturalism, denial of evolution, belief in abrupt appearance and
supernatural design, emphasis on gaps in the fossil record, claims of
scientific support, claims that evolution is a threat to society, and
support for "teaching the controversy" -- are essentially unchanged
from young-earth creationism of the 1970s (Forrest 2005).
The internet domain www.creation-science.com (as of Sept. 17, 2004)
is registered by Access Research Network, a major ID organization,
and directs you to their Web site.
One prominent ID book captures the idea of creation in its
definition:
Intelligent design means that various forms of life began abruptly
through an intelligent agency, with their distinctive features
intact -- fish with fins and scales, birds with feathers, beaks,
and wings, etc. (Davis and Kenyon 1989, 99-100)
The ID movement rejects naturalistic explanations for origins and seeks
to replace them with one or a few sudden creations by a supernatural
agent whom almost everyone in the movement identifies as the Christian
God. That is creationism, plainly.
The "intelligent design" strategy evolved from creationism. A main
textbook for intelligent design, Of Pandas and People, was in draft
stage in 1987 when the Edwards v. Aguillard decision made teach
"creation science" unconstitutional. Early drafts of the book show
that it was a creationism book, using the word "creation" and cognates
throughout. Drafts made after the Edwards decision show that the
authors simply substituted the term "intelligent design" for "creation"
(Kitzmiller v. Dover, 2005).
Davis, Percival and Dean H. Kenyon. 1989. Of Pandas and People: The
Central Question of Biological Origins (2nd ed.). Dallas, TX:
Haughton.
Forrest, Barbara. 2002. The wedge at work: How intelligent design
creationism is wedging its way into the cultural and academic
mainstream. In Pennock, Robert T. (ed.), Intelligent Design
Creationism and Its Critics, Cambridge, MA: MIT Press, pp. 5-53.