I know this is a ridiculously stupid question, but I just installed Wordpress at myname.myurl.com and I can’t seem to ‘find’ the file when I ftp to the site. It’s simply not there (in my url directory) or even up a level. I want to install new themes and for some reason I can’t do it from the Wordpress dashboard so I thought I’d try it through ftp, but no luck. Please help.
This sounds like you did the Easy install, rather than the Advanced. Easy installs are maintained by DreamHost on their own servers, so they’re not in your home directory and can not be modified or added to.