A quick google search suggests that
notepad++ looks compatible. The first difference that I noticed, though, was that in the Replace codes, you should use \ instead of $.
I think it's an older version of pcre.
Work on a copy, check your results, and read that page I linked to. Basic regex is not terribly hard, once you get the concept.
Or switch to NoteTab.

(Dude, I like it so much I keep a virtual machine of Win2K just to run it...)
m a r