It means that the PPM can't find a binary package at the repository that it is currently looking in. Try using the "search" function from the PPM command line e.g. "search DBI" or "search DBD", and if no results are returned, the next step would be to look at the "help" output to determine how to change where PPM is looking for the packages. (Maybe you have an old version of PPM? Are you using the most current ActivePerl version?)

Hope this helps.

..Guv