is it possible to compare your file with the "remote" version

Hi,

i've got two servers, one local where i keep all the php files of my 
website that i'm developing and the other one, the "online" server where 
the files are finally stored so that everyone can see them.

To upload the files from the local server to the "internet" server i 
press the right button on the name of the file and then press the 
"upload this file" button. After that, the file is uploaded through ftp 
protocol.

Well, the thing is... sometimes i need to compare the "local" version 
with the "online" version before i upload the local version. Is it 
possible to do that with quanta? I've installed "kompare", but as far 
i've seen, i can't compare a "local" file with one located in a external 
server through the ftp protocol.

I used to do that with dreamweaver before moving to linux, but right now 
i really miss this feature. I don't have any cvs software and i'm not 
the only person modifying these files, so i really need this kind of 
sytem to compare both files.

any idea?

thanks.