the screen shot of the in-game listing of the stats on these boots are correct.
However, the textual stats given above are in error. Other than HP, Mana, and Endur, all stats shown with a value greater than, say, 200, need to be divided by 256.
For example:
STA: +22+512
should be
STA: +22+2
CHA: +24+768
should be
CHA: +24+3
AGI: +21+512
should be
AGI: +21+2
same goes for
Clairvoyance: +256
Spell Damage: +256
Damage Shield Mitigation: +256
Heal Amount: +256
(these last four should be "+1")
-- Scruetayp Vivisectivore, 83 Iksar Necromancer of Povar (formerly Quellious)