File Update

I want to be able to update a file on my server (which can be accessed through FTP). My question is how do I go about accessing it? Do I have to use the ftp_connect(); functions or can I just go about with something like this: --------------------------------------------------- // This doesn't work: $Location = "ftp://". $Find->USER .":". $Find->PASS ."@mysite.com/files/". $Find->BRANCH .".txt"; if (!$fp = fopen($Location, "a")) { Error("Error: 0001. File ($Location) could not be found."); } else { if (!fwrite($fp, $Find->Line)) // line is an HTML tag/link { Error("Error: 0002. Information was not written."); } if (!fclose($fp)) { Error("Error: 0003. File close error."); } } --------------------------------------------- I cannot figure out how to access the file and update it (which is just /file/*.txt from where I'll be accesing it). By update I mean append. I tried to access it with the complete. So, what file path do I use to update (append) a file on the same Windows (2k) server as my web server (/files/*.txt is the location of the file relative to the PHP code).