Php importer

I installed wordpress on my website, then wanted to import my old data to it, downloaded php importer, put it in upload folder, activated it, a screen asking for the file came up, I uploaded it and then the error message:

The uploaded file could not be moved to e:\inetpub\vhosts\mysite.com\httpdocs\blog/wp-content/uploads/2010/09.

I had to create uploads/2010/09 manually because it was already giving me error messages that it couldn’t create.

In one screen it asked me for ftp password and I gave the information, but now I wonder, maybe I misstyped the password ? I don’t know. And I don’t know where to change it, reading online i found I should add this:

define(‘WP_MEMORY_LIMIT’, ’64M’);
define(‘FTP_HOST’, ‘xxx’);
define(‘FTP_USER’, ‘xx’);
define(‘FTP_PASS’, ‘xxx’);
define(‘FS_TIMEOUT’, xxx);

(of course with my informations) to wp-config.php and so I did, and replaced wp-config with that new data, even though I believe its reading from somewhere else because ever since it asked me for ftp account it didn’t ask me again, only once, and when I downloaded wp-config no ftp account was set in the file, now it is, because I uploaded a modified version of the file.

What should I do :/

PS: mysite.com was just my edition