How excatly do you use a Proxy for FTP?

ok sorry for this but i have only just been forced to use proxys for my site as my ISP has blocked the site hoste and the only way i can get on it is by using a proxy. But now i have acchived getting a proxy to work in IE im now trying to get it to work in SmartFTP as well.

I have gone into tools>settings>proxys and then after i get in there i got lost. I did try putting some proxys in there but it didnt work :roll:

Can some one please give me a simpal step by step instruction of how to get a proxy to wrok with SmartFTP

Thanks for reading