help for csp portraits

[eternal_hacker]

hello, well, I know how to put new portraits in brawl, I have no idea how to do it and would greatly appreciate if someone gave me a tutorial on how to put new portraits, as seen tutorials and this and says that there three methods as, but not No method was able to understand
methods were char_bust_tex, cupash and common5, which are not, again I would greatly appreciate if you explain what they are and how they work

[Chuy]

Download this and open the common5 and then goto sc_charcter inside that is char_bust_tex_lz77 inside that is all the portraits

[eternal_hacker]

sorry, im totally new and i have no idea what is sc_charater or char_bust_tex_lz77, are these pc programs or something like that?

[Chuy]

No they are files inside the common5

[eternal_hacker]

how can i open the common5?
and then what shall i do?