HELP ! Im a Noob :S

Please help me, i have never used a program like this. I need help connecting the program to my ftp,
i have looked at the tutorials and it hasnt helped. I am trying to connect to,
i put the following in the host:, in path i put: /, i put the user / pass in. when i try to connect, i get the following error: Unable to resolve host name. The support thread say's to connect to the host correctly. And ive tried every possible combination in the host, i can think of. Please help me someone, tell me what to put in the host, or how to make it work.