And if I enable the custom web, can I just put say one file, maybe the index.html in there?
Certainly. I have but two html files in my 'source' folder.

If you use the "Simple Web", you would just put all the html 'code' in the "Text" block in the On-line/Simple Web/Text area. The "Setup" tab still allows you to save the original html page, with any WC tags you might include, in any location you want. I've never used the Simple Web method, but from reading the Manual (page 131, bottom of page, sentence starting with: "Note also..."), it appears that WC does not actually save the edited files in the WeatherCatCustomWeb folder. No surprise there, these pages are not going to be updated/uploaded several times a minute. The fastest updating is 4 times an hour. The actual page you paste into the "Text" section of the prefs will always remain as you typed/pasted it in. There is little need to save the edited/parsed version after it is uploaded to your web space. The only thing that would be changed are the WC tags, the original is not changed (just as in the Custom Web method).
The index.html file uses frames. And yet frames are depreciated?
Well, several things allowed in html 1 are deprecated. We're actually up to version 5 of html. Fortunately, most browsers are not too particular and will be backwards compatible. The only time you would usually see that warning is if you run your html through a W3C or other Validation system. There are dozens of sites that can provide help in seeing what's changed and why. A good dedicated editor will usually indicate a conflict if you enter deprecated code. AFAIK, no search engines downgrade the use of deprecated html.

Is there any way to make the WINDDIRECTION show N-E or S_W etc, instead of the degrees?
Yes, but I don't think the way is in WC. I use some simple code to change the "PM" or "AM" time suffixes to "pm" and "am" because I like that better. Likewise, if the only 'rain' indication is 0.01 inch (the minimum Davis can measure), I have a "Max Rain Rate" show "Less than 0.01 in/hr". I also have Total Rain show "No rain today" instead of "0" (or whatever WC would show). Some 'non-html' language (PHP, javascript, etc.) could be made to change the numeric values (0 through 365) to a string containing any combination of letters and punctuation you want. But that's a task for later, I think.
