So I waited till I had completed all the quests and joined all the guilds and stuff that I wanted to do which is pretty much everything… spending close to 300 hours in the game before trying to collect all the words of power. So the last guild is the Thieves Guild. So I do the first few quests for the Thieves Guild and get accepted and this guy leads me down to the thief hideout and I walk into the center area and then BAMB I get attacked by everyone in the place. Well it does not take long for me to make Vienna sausages out of them but I don’t think that is how it’s supposed to go. I have played this character to protect the helpless so I have not been kind to anyone that prays on the helpless or innocent which would include any kind of thievery… I am only doing the Thieves guild stuff to get the word of power because the peeps who set the game up made it so. Anyway does anyone know how I can become friends with the Thieves guild again so I can get the word of power. The problem does not seem to be getting into the guild just getting attacked once I am in. I know I could just get the rest then add the last one by using the console and if that is what I have to do the so be it but I would like to get down in that dungeon and get it myself.

Here's a couple links that might help you, be sure to read all of the pages, especially the bugs sections . . .

http://www.uesp.net/wiki/Skyrim:Thieves_Guild_(faction)

http://elderscrolls.wikia.com/wiki/Thieves_Guild_(Skyrim)

. . . hope they help.