I'm in the process of creating a website, and intending to use SSI, jusy to make life easier. One of the things this will include is a footer, but I have no idea how to get this in beneath the main body of the html which will not be included in the .txt file. There's probably a really obvious answer to this, but any help is massivly appreciated.

SSI on LEIA...
http://www.lissaexplains.com/html6.shtml#SSI

I've read and re-read that page numerous times. Dosn't help me at all with my footer problem.

step 1.
make your full webpage like normal, no includes at all.

step 2.
highlight the part you want to make the "include", take it out of the webpage coding and put it onto its own seperate document file.

step 3.
enter the "include" code in the space you just created in the webpage coding.

well the first thing that would be obvious is that the SSI shoudl be after the body stuff and if it is not, that would be step one. if it is at the bottom then perhaps you should get/change your css to work correctly....

So I have to have two separate includes? How annoying.

two seperate documents, not two seperate includes.

document one...
webpage that has an include command in it.

document two...
the piece of coding that will be included into the webpage.