this is an update in case anyone with a similar problem stumbles on this thread in the future...
to recap, i was unsuccessful in either cloning or imaging/restoring my T61 Windows Vista harddrive to a Lenovo replacement harddrive (same capacity as original) installed either internally or in an ultrabay adapter. in all cases, upon reboot i was presented with either a blinking cursor, or an error message stating that windows cannot load \Windows\System32\Winload.exe.
i have found (with some help, i admit it) that the case where the error message above appears can be easily corrected - if you have a Windows Vista installation DVD. apparently the error message results from a corrupted MBR. you can repair the MBR by booting with a Windows Vista DVD and selecting repair (not install) from the menu. but wait, you say, my licensed copy of Windows Vista was preinstalled on my ThinkPad and Lenovo does not provide the original media. well, don't despair, Windows includes a recovery disc creation utility in /windows/system32/recdisc.exe. before you run that handy little program, you should know that (in Vista SP1 at least), that utility has been disabled.
fortunately a number of folks have been kind enough to post a bootable Windows Vista recovery disk ISO online (created using recdisc.exe in Vista SP1 Beta). you can download the version i used to successfully repair my imaged/restored T61 harddrive at the link posted below. please note that this utility provides a recovery capability only, you cannot install a copy of windows using it, so don't even think of clicking the install button (though i have no idea what will happen if you do, just that it won't install windows).
after hanging out in Acronis' Wilder's Security forums, i have reason to believe that TrueImage version 11 and above may correct this problem automatically, but i haven't had the courage to purchase the latest version after reading all the problems posted in that forum.
http://c4consulting.com.au/soluctions/v ... CTIONS.htm