Where do posts/pages “live” on a WP installation?

And how do I get at them?

I need to strip some code out and I can’t find the files using my ftp program. How the heck do we access the post files directly? Where are they? The “folder” the browser claims its in doesn’t even exist, according to filezilla.

For the record, someone, somehow has inserted a bunch of nasty-looking code into my pages. I don’t want to copy and paste it here because I have no idea what it is or what it does, but I see online that others with WP sites have had a similar problem. It’s a java script followed by about a gazzilion href links to hks.harvard.edu/journalistresearch/etc.etc.etc.

It’s on every page…or at least it shows up on every page I access via the browser. I really wanted to know (a) if it is actually in the code for every page, and (b) if I can get it out, but I have to find the file to do anything.

Any help is appreciated.