Where is the Helm of Glory found? I read you get it as result of the sculptor quest but there is no mention of how to get that quest. Can someone enlighten me?

Finish the Unseeing Eye quest for the temple. The next quest you do for the church is to get Sir Sarles to make some sort of monument, and after you do that, you get the Helm of Glory.

Not true! ... Just talk to one of the other clerics in the temple of Helm ... one of them will give you the quest ... No need to do the Unseeing Eye before that!

The only other cleric you can talk to doesn't give you the quest until you finish the Unseeing Eye. He just says something about getting a move on and the watchful eye of Helm, or whatever.

You need to complete the Unseeing Eye quest because that acts as the trigger for "other tasks in the service of Helm" which you then need to talk to the lower level priest about.