I think that wget allows you to take up where you left off. Don'tknow too much about it. 'Man wget' should provide an answer. Just remembered, the wget doesn't take long, it just downloads the installer - the main program then downloads, that's the long part.
Ximian say (here
) that Evolution on RH7.3 is only supported if you have Ximian Desktop installed as well. Whether that means that they know it won't work without it or if they won't let you get telephone support without it I don't know.
Good luck. (I've never had a problem with the download)
<edited for spelling>