If you can connect via active FTP, then that's fine. Personally, I use SFTP because it's much more robust than FTP.
File changes should appear immediately, barring any caching your browser is doing.
Ok, I'm starting to catch on. The link you posted for OLDERWORK is missing the S for OLDERWORKS. I strongly urge you to not use upper case in your directory or file names. That often causes massive headaches for case sensitive servers, such as at DreamHost. Now would be a good time to convert everything to lower case, and hopefully will help clear up this problem.