You could start by setting a graphical user interface up. Look into the wiki for reference on the required functions and callbacks.
Specifically I'd only add a few buttons that trigger outward appearance changes at the beginning. Buttons can be implemented using textures, draws and mouse position checks. The player appearance changes can be triggered with SetAdditionalVisual. The function GetAdditionalVisual might also come handy.
When you got that far you could make your mind up about how you'd like the character appearance menu to look like and how to achieve that by moving the buttons around, adjusting them if necessary and adding additional graphical elements.
Eventually, after implementing the GUI, you could have a look on the database related functions (MySQL) in the wiki, for you might want to save the appearance information, so that players won't have to spend time on picking their favorite look everytime they come to the server.
Here's some general advice:
Read the wiki entries and make sure that you understand them. Ask here, if you get confused about something you read in an entry.
Knowing and understanding the given functions is essential. You'll only come closer to the point of finding solutions yourself, if you get an idea of what the software is actually capable of and figure out how to operate it.
Reached that point you'll be able to describe problems, that you ran into, more accurately. People will be more willing to help you then.
Specifically I'd only add a few buttons that trigger outward appearance changes at the beginning. Buttons can be implemented using textures, draws and mouse position checks. The player appearance changes can be triggered with SetAdditionalVisual. The function GetAdditionalVisual might also come handy.
When you got that far you could make your mind up about how you'd like the character appearance menu to look like and how to achieve that by moving the buttons around, adjusting them if necessary and adding additional graphical elements.
Eventually, after implementing the GUI, you could have a look on the database related functions (MySQL) in the wiki, for you might want to save the appearance information, so that players won't have to spend time on picking their favorite look everytime they come to the server.
Here's some general advice:
Read the wiki entries and make sure that you understand them. Ask here, if you get confused about something you read in an entry.
Knowing and understanding the given functions is essential. You'll only come closer to the point of finding solutions yourself, if you get an idea of what the software is actually capable of and figure out how to operate it.
Reached that point you'll be able to describe problems, that you ran into, more accurately. People will be more willing to help you then.