macosx.com's search tool is actually quite good.
It's always a good idea to search the posts before asking a question. In this case, searching for "bom to path" or "developer tools" pulls up a couple of threads with good instructions on how to fix this.
Short answer: StuffitExpander's gzip or tar algorithm messes files up. Use Scott Anguish's OpenUp utility (or the command line tools, described in other threads) to expand the file, and the it will install properly.
zach
[Edit: Made post less angry-sounding. Sorry -- didn't mean it that way. Hope nobody was put off.]
[Edited by zpincus on 12-22-2000 at 05:06 PM]