to LI Weddings-posting problem

I sent you an email over the weekend but I haven`t received a reply so maybe it`s better to post here. I filled out a profile which was accepted (although I can`t access it) because the message box shows my email address. The problem is that I keep getting a message about using a valid password whenever I have tried to post a message...and I am using the password I chose! Help! I finally had to put my last name initial to get this accepted but I don`t want to fill out a profile again & get my username rejected again. Thanks for your help.