In what TGP i can post it?
realsweet . . . the honest answer is 'very few'. Boy First Time galleries are a glut on the market -- many TPG's list specific sites they will not accept and that's one of 'em. The other comments are true. Most don't support free hosting, none will allow thumb-to-thumb links, etc.
To find Thumbnail and Movie Posts you'd like to work with and get a general idea of their 'rules' or 'requirements' (depends on how you look at it) . . . check out our
Directory of Gay TGP and other Post Sites.
Just for an example -- here's the entry for Cockseeker -- TGP/MOV
(= they accept Thumb and Movie Posts), 10-25 pics/link
(= they want a min of 10 max of 25 pictures and a recip. link is required), no free hosts/html pic pages/consoles/pop-ups/links to dialers/blind links
(= don't do these things), must promote membership site.
Welcome to the club and have fun building galleries!!