Doubt about the new Oblivion Updates...help me clarify please!

Ok we all know Oblivion rocks...yes I know :) but im big in achievements and after friggin 20 hours of getting the 1000 points...I lost interest in the game, im just thta type of guy :)...but I read in a Game Informer article that for the new Shivering Isles expansion there are more points to get???? If this is true can someone plz tell me...

And also is this update worth it?????? 

ooooops sorry :S yeah hehe obviously didnt pass it in 20...I really dont know how long, and nope I didnt rush it :)

I fully explored everything...ok but I will admit I went through some guilds quickly just because I didnt like most of the quests, for example thieves guild quests: I passed each one in like 4 minutes depending on what it was, when I got myself 100% invisibility, and I used this little trick to save me in many parts of the game :)...and well ok yeah sure -.- maybe I didnt fully grasp the entire gaming experience but Im happy with what I did :) I had fun...and I didnt pass it just for the achievements...I only passed it to be able to say I PASSED IT you know...so anywhays thanx for the info, I might consider buying the new expansion if it lowers the price...oh and btw its not that this game is for achievements its just that I personally get bored of such huge games, happened with Grand Theft Auto, Mercenaries...ect...I get bored of them :S dont know why :) o well... thanx again guys!

The shivering isles disc update isnt working on my xbox:( can anyone tell me what im doing wrong??

If you want to get all the points for Shivering Isles you also have to play through it twice...I did not care to much for that add on so I only did it once. I didn't care about the achievements but thuroughly enjoyed Oblivion. I still go back and make a new character every once in a while. A true masterpiece IMO.