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Not unless there were *significant* editing improvements over that very first original one. It was so full of errors (and more subjective problems like conversion decisions I disagreed with) that I haven't even looked at the line since.
I would, but I would prefer if some of the monsters already updated elsewhere, but WOTC, Paizo, whoever ... were taken out and replaced by other ones, not updated yet.
I felt that in general, the contributors of Tome of Horrors didn't understand the scope of the 3.5 conversion. Too many of them were reassignments of skills and feats when a serious overhaul of the creature was needed. AC and HP are too low in most cases.