Try this list of steps and see if it helps.
Step 1: Open My Computer and click on the "Map network drive" button.
Step 2: Name the Folder and select "Connect using different credentials and then click on "Connect to a Web site that you can use to store your documents and pictures.
Step 3 - click "Next"
Step 4 - Select "Choose a custom network location" and then click "Next"
Step 5 - Type in "ftp://yourwebsite.com/" as the Internet or network address
Step 6 - Un-check "Log on anonymously" and type in your user name for the FTP access.
Step 7 - Type a name for this location.
Step 8 - Click Finish
Step 9 - Now when you double click on your new network location you'll have to log in. Type in the password, uncheck "Log on anonymously and finally check the Save password unless you want to enter it every time.
Step 10 - Transfer your picture files to the server just like it's a folder on your PC.