The recent buzz in the technology world has been the upcoming release of the finished build (RTM) of Windows 7. Already, subscribers to Microsoft Technet have been granted access to the final release. But for those who installed the Release Candidate (RC), it will probably come as a shock to find out that there is no direct upgrade path from the RC to the final release. The reason for this is that the build values are different in the source code - the RC has a value of 7100 while the RTM has a…