AE's and spells from TSS are what effect corruption resist. i dont know if this is true or not but i heard that corruption resist is intended to be a low one and that 50 corruption is the equivelent of 500 of any other resist.
you can only get items with corruption resist on them in TSS, which is sneaky on SoEs part IMO as it means high end raiders may have to gear up on lower levels of TSS armour (which would most likely be downgrades from thier original armour) to be able to progress to the end game of the expansion.
Edited, Sep 21st 2006 at 3:56am EDT by sickseventwenty