How do i reply to comments?

They don't have direct replies yet.. They are almost finished working on them tho :)

You can't yet the website is still under construction.

You gotta put the name down to who your replying to

Like this...

type words

The way it is now, probably easiest to put @ and the name of the poster you're addressing, (@Captainstrawhat, for example) in case your reply is not in sequence to the comments. They don't "nest" at this point, unfortunately.