Since the author of the guide doesn't want it redistributed, here is a link to it:
Guide[www.gameboomers.com]


:Urn minigame: (at this point you will not be able to leave or access other inventory items, don't worry, the game didn't break)
Read the tombstones; open the tombs and get the urns.
Starting left to right by the tree.

Pick up the grave flower and urns from the tombs.
Urn 1: Peter Murphy, tradesman kind to wives. Talk to urn 1. He's the exterminator here.
Urn 2: Raymond Edwards. Talk to urn 2. Raymond owned an occult shop.
Urn 3: Winston Leigh, plumber. Talk to urn 3. He worked here at the cemetery.
Left to right on left side:
Urn 4: Eugene Harold. Talk to urn 4. He collects mold spores and fungus.
Urn 5: Jeanne Melanisse. Talk to urn 5.

Place urns in different tombs to get space for Agnes' remains.
Urn 1, 4 doesn't want to be by the tree because of the roots.
Urn 2 wants flowers.
Urn 5 doesn't want to be close to mausoleum.
Place Urn 1 (Peter) at tomb 4 left of mausoleum.
Place Urn 5 (Jeanne) on tomb 2 middle by tree.
Place Urn 3 (Winston) on tomb 3 right by tree.
Place flower in tomb 5 right at foreground. Place urn 2 (Raymond) in this tomb.
Place urn 4 (Eugene) together with urn 2 (Raymond) at right tomb foreground. (Achievement - Rest in peace).
Automatically Talorel places Agnes in tomb 1. She's happy now.

As far I can tell the only missable achievements are:
*Thieving angel
*True angel

To get both make an Act 2 savegame right before entering the confessional for Talorel's confession.
Which one you get depends on whether you returned the client list or not.

At this point in the story the Merchant stall is empty so you can take or return the list at your leisure.

Once you go through the confession, you get the appropriate achievement, and you can reload your save to unlock the next one.