lost setup folder and users file. trying to reset admin pw.

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Gallery version: 1.4.3-pl2
Apache version: 2.2.21
PHP version (don't just say PHP 4, please): 5.2.17
Graphics Toolkit: imagemagick
Operating system: CentOS 5.7
Web browser/version (if applicable): Chrome 16.0.912.77

Long story short. Old host provider updated their OS and dropped support for unrelated software which required us to switch to a windows os hosting setup. Now that didn't help the other problem and pretty much sunk everything php related so I decided to change hosts. In doing so I've managed to get everything transferred except the .user* stuff so I can't log in as it seems to have been blown away. On top of that I believe I deleted the /setup folder after the initial install years ago. I've read all I can find on resetting admin passwords/config wizards and such. My question is, can I use the setup folder from the 1.5.10 d/l and reset my admin password or will that just muck up things more?