The MOSS 2007 Farm-Wide BLOB Cache Flushing Solution (or BlobCacheFarmFlush) provides SharePoint site collection administrators with a UI-based mechanism to flush the contents of MOSS publishing site BLOB cache folders (or disk based cache) on all servers in a farm at once.
For more information, including a WSP download, source code, and documentation, check out the BlobCacheFarmFlush solution on CodePlex. Note: if you’d like to comment on the solution or provide feedback, please do so on CodePlex in the appropriate location. Thanks!