Can we not see what PM's we've sent without the other member replying to the original message? I've sent a couple and neither show in my sent folder though they show up in my inbox?

 

That's because you had "Save a copy of sent messages in my Sent Items folder by default" set to "No", in your user profile settings.

While I was there checking, I took the liberty of changing the setting to "Yes" for you, so going forward your "Sent messages" will be saved in your "Sent Items" folder.