I am using the aforementioned house mod by cali, and when I go to the island the ouse issituated at, the house is there, but no island. In the CS it is fine, but no in game. Any help would be nice.

I don't know the mod you speak of. Does it come with a BSA or something?

Or it could be due to mod conflict. You could try switching the loading order about.

Nope, no BSA file included.
I'll try moving it in the load order. (Can I do that via the .ini file or do I need a seperate utility?)
EDIT: That worked.

Congratulations on sorting it out. I'd only like to add some information about Morrowind's load order for plugins: it's based on file type and file date. ESM-files are loaded first, ESP-files are loaded afterwards. Between ESM or ESP files, load order depends on the file date and time. The oldest file ist loaded first, the youngest file is loaded last.