Hiya, welcome to Mizahar.
First of all your name doesn't adhere to Mizahar's rules, the first pm you got will help you understand things better but here on Miz, our user names are our Characters names. If your character's name is Talia Star then you should go to User Preference and change your name to add the space. There is no need for _'s also.
Link your Character sheet to your profile using the User Preference page too that way people can find your CS
Glad to have you!