Need help with search-and-replace

Folks,
I need to strip certain columns out of my pgdump file.  However, I
can't figure out how to use any Unix-based tool to search-and-replace a
specific value which includes a tab character (e.g. replace "{TAB}7
00:00:00" with "" to eliminate the column).
RIght now, I'm copying the file to a Win32 machine and using MS Word
for the search-and-replace, but I'm sure there's got to be a better way
... *without* learning VI or Emacs.  Help?
                -Josh


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