my big fault is that i don't speak/write correctly Marco ...

i used the PM's add-on only like an example ... but others hacks has the same option ... so i posted here cause i don't want spam over all the hack's threads that have this option ...
however
HERE i asked to Paul, and Bob gives me a reply ... but i still don't understand what is the
real difference ...
i think my example was 'clear' (really?

) so i ask to you here again:
like you know some hacks has the possibility to select if you wanna run the code onto only onto forumhome
or all the pages ... BUT what's the difference between the first and the second option? i mean this if i select 'all pages' the results are:
1) OK: it generates queries over all the pages (like Bobby told me)
2) ?: can i grab all the spiders
(i use track guests hack only for example, but like you see i've asked to Paul onto 'who posted' cause it has the same options) onto EVERY page and get the result onto the index box? or if i select run only onto forumhome i can grab only the spiders that are lurking over my index?
and what about 'who posted'? i don't think that is possible posting something over the index ... so i still don't understand ...
it's a general question, not an issue, i just wanna know ... nothing more, nothing less ...