Thanks Radek, I will try your suggestions again. I tried them and found that I had a bug in my code. My pages are generated using classes and factories and I had missed the code needed to pull in the css file. So I would make your changes in the file and nothing would happen because the page did not have a reference to form.css. Fixed and looks fine.
I have added an additional date format so that dates appear as "full month name day without leading zero, full year" (e.g., February 14, 2012). The change was pretty simple and is in WUG-inc.day.php around line 140 or so. The change is
$monthName = date("F", mktime(0, 0, 0, ($month))); //WFH 2-14-12
$dayOneDigit = ltrim($day, '0'); //WFH 2-14-12
// Day date text formating
// 0 = d.m.yyyy; 1 = m.d.yyyy; 2 = m/d/yyyy; 3 = d.m.yy; 4 = m.d.yy; 5 = m/d/yy; WFH February 14, 2012 6 = $monthname d, yyyy
$dayDateText = array(
$day .'.'. $month .'.'. $year,
$month .'.'. $day .'.'. $year,
$month .'/'. $day .'/'. $year,
$day .'.'. $month .'.'. substr($year, -2),
$month .'.'. $day .'.'. substr($year, -2),
$month .'/'. $day .'/'. substr($year, -2),
$monthName .' '. $dayOneDigit .', '. $year //WFH 2-14-12
);
The changes are marked with "//WFH 2-14-12"
WFH is my initials and 2-14-12 is the date. Oh, Happy Valentine's Day!!!
Looking at the code, I think a better way would be to not create new variables, but just make the changes in the array itself. Oh well!
The option for the new date format is 6 in the array so that option needs to be set in the configurator and in the settings file. When I was testing, I made the change but did not manually change the settings for $ddFormat so the change did not appear!
I also prefer other strings fore the time periods and changed the following in the WUG-lang-en.php:
$TperYear = ' for '; // with spaces at start and end text WFH was for year
$TperDay = ' for '; // with spaces at start and end text WFH was per day
$TperMonth = ' for '; // with spaces at start and end text WFH was per month
$Tplast = 'last'; //WFH 2-14-12 was per last
I think the date format might be of interest to others. The strings are more a personal preference, and i have not even thought about translations.
Addition 2-14-12 or February 14, 2012 
The tooltip (based on $ttDateText array) for month and year (contained in the WUG-inc-month/year.php files) needs to be changed to add the formatting for the new date format
'%B %e, %Y' I do not understand why HighCharts uses some non-standard date formatting codes, but it does!
Bill