In my opinion the only serious attempts made by proponents of ID were slevesque's efforts to defend irreducible complexity (IC) as an indicator of design. At the end of the discussion I felt that I understood the IC argument much better, but unfortunately, I don't believe anyone even attempted to offered evidence for design. Arguments, yes, but arguments with identifiable flaws, and no evidence.
The problem in the discussion here is the same problem that underlies Behe's own efforts. The link between IC and design is merely asserted with at best expressions of incredulity that IC could arise through evolution. Several posters offered evidence that suggested that IC could result from evolution, but the examples were summarily dismissed. In particular, the failure to deal with the evidence cited for evolution of the mammalian inner ear was very telling. Also, I'm sure Behe must have encountered all of the criticisms leveled here but I did not note any attempts to cite his responses. Perhaps no proponent is really familiar with them.
What could have helped was allowing at least a little discussion of the nature of evidence. The starting post was weak in that area and that the moderator was too quick to cut off discussion of the nature of evidence.
Unlike some others, I am willing to believe that it is possible to identify design without identifying the designer, but I see no convincing argument that IC or specified complexity are useful as indicators of intelligent design. There is unchallenged evidence that evolution can produce organisms with those characteristics.