happier5281 - 2005-10-11

I am one new user of weblech , and I find it's great and do help to me!
by using weblech, I want to  ask some questions:
1 I want to use weblech to spider in the whole internet ,what should i do?
2 when downloading the web page, do it can identify the last-modify time of that page , and when the time isn't change, so weblech needn't
to download that page again?
need someone to help! thanks