I installed Version 3 Beta Build 483.  The installion was uneventful and  my system is running faster.  I am running Windows XP Media Center Edition Version 2002 SP3, 3.06GHz CPU and 1.0Gb of RAM.  The following speed test was used with a SanDisk 8Gb Cruzer Micro USB 2.0 Flash Drive.  4095 Mb Allocated with 64% of the cache full.  The random access speed was 5134KB/s, Direct Access Speed-8.179702, Cache Enabled Access Speed-14.298732.  The ration was 1.748075.