In the Gnisis Traid Houes I am geven a qust to find a chart by Quintus Sequinus, on a shipwrek off Tel Braora.

OK, where's the shipwrek

What's the REAL quest-name?

is it the quest to find a daedric blade in a shipwreck off of bal fel , thats the only thing i could find. i dont remember any imperial legion quests that involved anything like that

This has to be a mod.

1. No vanilla NPC named, Quintus Sequinus.
2. There is no shipwreck off of Tel Branora (closest would be just North of Bal Fell, unless there is one undocumented on the map).
3. Never heard of a Gnisis "Trade House".

Double check your esp load and readme files, then post in the mod forum for help or contact the mod's author.

[edit]

Madach Trade House... Is this a quest from General Darius? I can't recall a quest like that with any name similar to above or involving a shipwreck around Tel Branora, and can't find anything on the UESP.

I don't know what you're talking about. What shipwreck? That are several shipwrecks with different shipwreck names. The Quintus Sequinus guy doesn't exist on UESP so it must be a mod.

http://www.uesp.net/wiki/Special:Search?search=Shipwreck&go=Go&nsnum=110&redirs=1&searchtitles=1

The owner of Madach Trade House Fenas Madach doesn't give you a quest.

http://www.uesp.net/wiki/Morrowind:Fenas_Madach

i tried google seraching the named guy and it came up wtih a quest details but not in english, so idk if your using a different language in the game or what but if you and can read it try google searching it as it shows results

This seems to be from the Korobal Island mod as far as I can tell.

That sounds like it might be from the mod Korobal Island (at least I remember one of the earlier quests in that mod involving a shipwreck in that vicinity). If that's the case, the shipwreck should be in the Azura's Coast region, cell 15, -16. Just checked via the CS.