"need help about this"

Ok, here's what I found :-

this (ths) pron. pl. these (thz)

Used to refer to the person or thing present, nearby, or just mentioned: This is my cat. These are my tools.
Used to refer to what is about to be said: Now don't laugh when you hear this.
Used to refer to the present event, action, or time: said he'd be back before this.
Used to indicate the nearer or the more immediate one: This is mine and that is yours.

adj. pl. these
Being just mentioned or present in space, time, or thought: She left early this morning.
Being nearer or more immediate: this side and that side.
Being about to be stated or described: Just wait till you hear this story.
Informal. Used as an emphatic substitute for the indefinite article: looking for this book of recipes.

adv.
To this extent; so: never stayed out this late.


Enough for you?

Chris.