I have a couple of workbooks I have used but they look like new minus a few circles and underlines here and there where we used them in a class a while back...They are wled.....I posted them....but should I cancel is this OK?

You'll need to PM the requester and get approval for the writing prior to sending, but as long as you do get their aproval you're fine.

OK cool I will do that now ..thanks ...I wonder if I need to write them now or when they accept the 48 hr hold?

It works either way, but if you contact them now, you just have to make sure that if they decline the WL offer (which does happen sometimes), that you get in touch with the next person it's offered to.