Hello, Ray.
We have a liftOver tool that you can use to convert your mm8 coordinates to their mm9 equivalents. We have a web-based tool at http://genome.ucsc.edu/cgi-bin/hgLiftOver or you can download a command line version from http://hgdownload.cse.ucsc.edu/admin/exe/.
Please contact us again at gen...@soe.ucsc.edu if you have any further questions. All messages sent to that address are archived on a publicly-accessible Google Groups forum. If your question includes sensitive data, you may send it instead to genom...@soe.ucsc.edu.
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Steve Heitner
UCSC Genome Bioinformatics Group
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