Revising on the Fan Fiction website

Is it possible to revise something already published on the fan fiction website, without taking down a chapter? I want to make a couple small changes to something that's already out there, but I don't want to take down a chapter and then get messed up trying to repost it, and having chapter 8 suddenly showing up as chapter 13. 

If it's a complicated mess to do it, I may just leave well enough alone.

Thoughts?

I take it you're referring to fanfiction.net? I've revised chapters before. Just go to 'publish', then manage stories. Click on the story you're editing, then click on 'chapters/content'. There should be a place then to click on that says something like 'revise/replace content'. After you upload the revised chapter, you should be able to just replace any chapter you want. It may take a little bit for the changes to show up. I just kept checking back until I saw them. Hope this helps some.

Thanks, yes, I am referring to fanfiction.net. Shame on me -- my old journalism professor would take me to task for not being specific, and he'd be right.