1. Thank you for the welcome.
2. I didn't realize that a question like mine didn't belong on this one. I figured it would either go on this one or D&D Rules. Guess I made a bad call.
3. Since the creation of a Vorpal weapon require:
Caster 18th level, Craft Magic Arms/Armor, keen edge and Death Spell, I assumed, perhaps wrongly, that that would bestow the 'keen' quality upon the weapon.
4. Since there is no mention of Swords of Sharpness in 3E PHB... I likened it to Vorpal, but not with an automatic kill(limb sever).
Reading the description of Vorpal once again though... "Upon a successful critical hit..." does strongly imply that threat and confirmation need to be rolled.
Thanks fer yer input. I will try to place my posts more carefully in the future.