I found a set of English subtitles at
<a href='http://www.megaupload.com/?d=ZOAYEVSY' target='_blank' rel='nofollow'>http://www.megaupload.com/?d=ZOAYEVSY</a>
The link for this was at
<a href='http://www.asiancinematic.com/Japanese-Dramas/Ranma-12.html' target='_blank' rel='nofollow'>http://www.asiancinematic.com/Japanese-Dramas/Ranma-12.html</a>
Which also has links for downloading the show. However, that download has built-in Japanese subtitles at the bottom which interferes with easily reading English subtitles displayed at the bottom. Also, although it may have been my software, I had problems with the video and sound getting out of sync. In the end, what worked best for me was to watch the download from Youtube with these subtitles, starting the subtitles with a delay of 4.5 to 5 seconds.
Although I was expecting the show to be pretty awful, in the end I don't think they did too bad a job. It was farcical with some dramatic bits, pretty much like the manga. They did make some definite changes from the original, such as having the engagement intended for Akane all along, even before Ranma arrived, and having Ranma agree to the engagement (or so he at least pretended) in exchange for information about a possible cure for the curse. But the deviations never made me feel like I wasn't watching a show about Ranma.