So I think the correct tally is as follows, hope it's right:
4 girls: Carrie, Tiff, Tam, Jo (maybe)
11 boys: Sarah, Belmarks, Hayseed, Gab, Tiff, Sal, Tam, Jo, Cailin, Amy, Melbo,
8 unknown: Felix, Kellix2, Shell, Sush, Shazz, Flash, Rosebud

Jo, u could update your details now, well gender... :-)