http://www.teamfortress.tv/thread/19073/hud-editing-short-questions-quick-answers Would be a better place to ask.
You may also want to check out Rays HUD tutorials https://www.youtube.com/watch?v=wPH6On2F0Pw&list=PL5eNrB8RrXXvohogCcKNKyk9SJxa26ltz They are the reason I know how to do anything with HUDs
Alternatively I could also maybe just download your HUD and try implement the changes, but it's better to learn yourself imo.