Pinging the host name "homex.coolconnect.com" returns an IP address of 202.172.225.38 which is the "A" host record listed on the name server for your domain. If your SME server's external IP is not 202.172.225.38 then you have to get the Name Server DNS records updated. If you are the admin contact for coolconnect.com, you should be able to get this done. Ping is used to test if your computer can communicate with the remote computer. In your case, you should work on getting the communication working, then try FTP.
If your SME server's ext. IP is 202.172.225.38, then you have a problem with your server or your connection to the internet.
Keep trying.