> -*
> +*xyz.com/showthread.php?t=123456&page=*[0-9]
OK

> -*
> +*xyz.com/showthread.php?t=123456&page=*[560-563]
invalid filter. Form is:
*[0-9,a,z,e,r,t,y] any characters among 0..9 and a,z,e,r,t,y
See Filters section in <http://www.httrack.com/html/fcguide.html>

> So my question is this, is there currently as way to
> use a range filter for pages [560 to 1000] without
> having to include each number from 560 to 1000 in
> the range regular expression?No such thing as a range regular expression.

How about, accept 3 digit pages starting with 500 and all 4 digit ones:
-*
+*xyz.com/showthread.php?t=123456&page=*[5-9]*[0-9]*[0-9]
+*xyz.com/showthread.php?t=123456&page=*[0-9]*[5-9]*[0-9]*[0-9]