Help me understand getdaily, getnew, etc. please

[Gutspiller]

I have heard of them and I even use getnew, but is there a page that I can see all the features of these functions?

I've read you can use the getdaily and tell it how many days you want it to go back and look for, so if you want the posts for the last 2 days, etc. you can do it.

How would I go about making it search for yesterday posts ONLY? So instead of including today and yesterday, or today, yesterday, and the day before, I just want the single days.

I use my forum for news and want to get something that will allow users to view Monday - Fridays news. Something like this possible? If not monday-friday, possibily the last 5 days. A link to each one. So people can view posts in only my news forum from 5 days ago.

Can somebody help me?