Reiserfs corruption: a little help, please!

[Paul M. Bucalo]

Somehow I managed to corrupt a reiserfs partition. Upon boot-up, it
tells me to use 'reiserfsck --rebuild-tree' because the problem is bad.
I've been trying to figure out how to do this, including getting to a
point where this can be done before mounting. I need to get this fixed
as soon as possible. What time I have had to Google has given me nothing
productive. I've already looked at 'reiserfs --help'. Still doesn't tell
me how to go about to actually make it happen. Any help greatly
appreciated.

Paul