Thieves guild glitch(?)

[notaghost]

So I'm doing the thieves guild quest where I need to intercept those guys in the swamp, kill them and take their stuff. One problem. They attack me b4 I can even talk to them. And another minor thing. They're completely invincible. I've played the whole game b4 and never had this problem. Any tips?

[Turtleman]

I don't believe you CAN kill them. Take a look around and situate yourself so you can back away from the leader. Go through your talk with him. When he gets angry start backing away. Don't attack yet. Keep backing away while they give chase. When you cross a border (watch small map) they will stop. Then you can stand there and attack free of damage. At some point you'll get a notice that you've picked up some marchandise (I don't remember exact wording). Then just walk away. You don't need them any more. Go finish your quest. If you ever come back that way bring calm spells.

[MORGANA]

I know these threads are Ages old but I have tried Everything that turtleman said and no joy - I can't complete main mission without this quest and I know I did it before - I'm soo frustrated I'm just moving on to Celtic exp pac but it really bugs me not being able to get this done - it's the same with the Goblin Mayor and witch quest - I can't get him to ask for my help - I dunno maybe this new version I dl'd has glitches
PS Seems I'm the only who visits here anymore