[url rewrite] Isolate my url GeoPath

Hi (sorry for my english),

i have a problem with my rewrite rule.

This URLs:
www.mydomain.com/area/state/region/city/month
www.mydomain.com/area/state/region/month
www.mydomain.com/area/state/region/type/month
www.mydomain.com/area/state/region/city/type/month

the problem is in the middle because it is variable in
length but separator must always be "/"... the result is:

www.mydomain.com/area/default.asp?
Geo=<geo>&month=<month>&type=<type>

i use: ([^/]+)/([^/]+), but obviously not working

any suggestion?

thanks in advance,
pierpaolo