well I found an answer to "renaming files" from Xavier which is from 25/02/2002
21:31. 

> I'd like to ask whether it is possible rename
> (-N option) only html files,
> but to keep names of other files (images etc.)

No - you will have to patch the htsname.c routine, or 
write an C handler using the httrack library.

Does somebody know wether this is still the only way to solve this problem?