After two days of trying, I finally figured out how to run the Treo 650 1.17 Update for Cingular Wireless on my Treo 650. I still have to repeat the process on Kathleen's Treo 650 before my upgrading is done. Here are a couple of things that would have really helped me streamline this process:

1. You need to have your IMEI and Serial Number recorded before you can download SplashShopper from Palm's website. I think it's best to shut your Treo 650 off, remove the battery, and write these numbers down at the beginning of the update process rather than the end.
2. Use the "hard reset" upgrade method from previous Treo updates. I tried to follow the instructions provided by Palm to update my Treo and this failed repeatedly. In retrospect, I probably had too little free memory or too many third party applications installed during the upgrade. The easiest way to do the upgrade is to:
   1. Hotsync your Treo in its normal configuration to your regular user profile.
   2. Perform a hard reset and re-hotsync the Treo in a new, blank user profile as suggested in the Treo 650 Updater 1.13 instructions.
   3. Run the appropriate Treo 650 Updater for your Cingular software version, following the included instructions.
   4. Once the update is successfully completed, perform another hard reset and re-hotsync the Treo to your original user profile.
3. The URL for downloading SplashShopper is only displayed at the end of the installation process. You won't want to repeat the installation even if you can get it to run through to conclusion twice. For the record, the URL is http://web.palm.com/support/cingular_treo650.

The Cingular 1.17 is out! thread on TreoCentral was very helpful in crafting this strategy, although I had to wade through a lot of meaningless posts.

Hopefully some Treo 650 users haven't done this update yet and will benefit from my experience.

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