Hi this is my first skin that i've made,
Please Backup the files before replacing skin.
Install : 
Extract files to any folder,
Open player.img in The folder:San andreas/models/
Using IMG Tool open player.img and then extract tshirtsuburb.txd for backup,
And then Replace that with the downloaded tshirtsuburb.txd
Now Rebuild Archive in IMG Tool.and Exit
Now open the game and Go to Any SubUrban Clothsshop in SAN ANDREAS,buy SuburbanTshirt,There you go!That all,thank you/Nishanth