The first one (It's so hard) you just have to lose one of the battles.
The second one (Inanna's wrath) was the hardest to figure out for me but is a following of losing a battle, I'll give you the details in the last paragraph after checking how I did it, I'll edit the post.
The third one (Damn rool!) you don't avoid/stealth the guards in episode 2, battle them right away and you get it after the battle.
The forth one (Anti-poison center) in the last battle you just have to dispel one of the other allies poison and you get it, don't forget to add the new skills so your main char have the dispel magic.
Use old saves to get them, you don't need to save also after get them since they are persistent saved, not saves saved.
Edit:
Noble_Undergrounder_of_Ea Ok, this needs some guidance and I'll try to explain the best I can with screenshots with URM in it, if you don't understand something tell me.
First lose a battle (I loaded the first battle in the game) and then you "wake up" near Inanna and then appears a choice and you chose the one that sets the variable inanna_feet_dial to true and its the choice "But I don't know how to fight! Couldn't...." and then will appear a next choice to "Lick her feet" lol and you get the achievement. If you had already the inanna_feet_dial set as true then chose the choice that is hidden for me (since I'm not into feet lol) "Is the offer from last time..." that as you can see also gives the achievement Inanna's wrath.
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