You can also head into the CPanel File Manager and do it,
http://lotus.x10hosting.com:2082/ (repleace "lotus" with your specific server).
And for the FTP info (a bit more detailed),
Host: YOURUSERNAME.x10hosting.com
Port: 21
User: YOURUSERNAME
password: YOURPASSWORD
Ex:
Host: darthvader45.x10hosting.com
Port: 21
User: darthvader45
Pass: DARTHVADER45_PASSWORD
If your new to this, just use CPanel.