Can duplicate [*] reports be suppressed?

[RobWillox]

That's the best question could come up with! Have searched but can't find any info.

New user: First crawl error report show listings of pages with same titles/descriptions. In reality they are all the same page but with different parameters eg

Email_Me_When_Back_In_Stock.asp?productId=xxxxxxxxx etc

These have been excluded in both robots.txt (for some time ie disallow: /*?)and google webmaster tools (just done).

Will they still show in updated report and if so is there a way to suppress them if the issues have been rectified as can be done in webmaster tools.

Is there a way to test to see if they are being excluded by robots.txt and GWT?