It appears my troubles were resulting from the Desktop Manager application logic being unable to deal with a renamed *.pst.
As detailed below, since sometime in 2000 my normal course has been to move the *.pst to a more easily accessible folder than the \user\settings\blah\blah\blah default AND to rename "outlook.pst" FROM this default TO something more descriptive of what it contains.
Apparently, anything other than "outlook.pst" causes logic errors.
The following is the longer story made available for those not slabbering over the www.engadget.com or www.tuaw.com iPhone features-functions-and-ah-ha's smorgasbord.
Joy at last after enduring a most punishing process. This was as detailed below:
a) Complete (low-level hard-drive format) reinstall of Windows XP pro.
1) Necessitated after installing Microsoft's Windows Destop Search programb) Reinstall of Office 2000 Outlook as I did not care for the new and improved 2007 version
2) This program permeated my entire system and rendered it less responsive than a slug besotted on iPhone kool-aid.
3. Really, my Dell Latitude D510 w/ 512MB RAM devolved from a speedy machine to an unusable one.
c) Reinstall of Desktop Manager
1) Did NOT rename the *.pst to one more easily identifiable as per my normal course since 2000
i) I normally rename FROM outlook.pst TO something like "daniel-olk-2000.pst"
ii) As I have needed to transport the *.pst file from one job location to another (prior to my laptop purchase), I found it easier to know what this file was named and where i.e., "d:\outlook\daniel-olk-2000.pst" I could readily find it.
2) Imported tasks, calendar, and contacts from my previously used *.pst into this newly created one.
1) Defaults were accepted with the exception of the calendar (previous 180 days, future 180 days)d) First synch
2) Ensured the Intellisync "bridge" or "conduit" was linking to the default "outlook.pst"
1) All joye) Second synch
2) No date issues encountered
1) After renaming "outlook.pst" to my normal "something-xyz-daniel.pst"f) Third synch
2) No joy
3) Task dates set years ahead, years behind, and otherwise scrambled
g) Subsequent synch's (sic) since
1) Renamed to default "outlook.pst"
2) Two task start dates set to someday in 1915
i) Set the Outlook to update the BlackBerry
3) All joy
1) All joyJoyfully About Business,