To fix it add this...
in cp_vars_udst.pl
find;
&RegField("Absolute Path: Rank Image Directory", "RankImgPath", "yes", "45", "120", "Typically this would be your UBB's NonCGIPath/UDRanks.", "$vars_udst{RankImgPath}");
after add;
&RegField("URL: Rank Image Directory", "RankImgURL", "yes", "45", "120", "Typically this would be your UBB's NonCGIURL/UDRanks.", "$vars_udst{RankImgURL}");
in vars_udst.cgi
find;
q!RankImgPath! => q!D:/Inetpub/wwwroot/devubb/noncgi/UDRanks!,
After add;
q!RankImgURL! => q!http://url.to.your/noncgi/UDRanks!,