OK i'm back, i just made some tests onto my boards, then i can say this:
it's really weird ... but now it seems to be correct (but i need more testing)
if you have changed the spiders.xml
BEFORE upgrade this hack you must uninstall this hack and you also must put the default spiders.xml, then you can re-install this hack, see if it detects correctly the main spiders (like google or yahoo!) and after that you can put the dream's .xml ...
if you install this hack with dream's or default spiders.xml enabled magically all the spiders lose their name (so you can't catch them onto WOL or guests display) ... so we must re-upload the spiders file (dream's or default it's the same) again ...
also i've tried onto a fresh board
WITHOUT this hack, i've only substitute the default .xml with dream's and it didn't recognize the new spiders (like snapshots), so i take the default .xml and i've only added manually the snapshots ident, then i saw if this runs and i can get the snapbot onto WOL ... yes it runs, now it recognized the new spiders, then and finally i've re-changed the default .xml with dream's file and it still recognized the new spiders ... after this i put Paul's hack onto my testing/fresh board and it runs ...
hope you can understand what i wrote