I checked the hts-log, here is the error that I recieve
on ALL images:
22:36:23
Warning: 	File has moved from
docs.rinet.ru:8083/PerfectIntranet/f1-1.gif to
<http://docs.rinet.ru/PerfectIntranet/f1-1.gif>

So, is it possible to mirror the images only like this:

(Filter flags) -*.htm -*.html +*.gif
I guess I'll just have to see for myself ;) ...