Groups..??

ok i must be a complete noob.. but can someone explain to me where is the group creation? im trying to make a sports website..

and the same 2 or 3 things keep stopping me from being finished..

number 1 is the Group creation page.. some Themes have it some dont..

number 2 is a header support.. ok fine i can get over not using my own header and just making a Logo.

number 3 is a group PROFILE page. this seems to be lacking in every theme.

so 1 thing at a time..

is a group creation something i have to make myself? or is it just simply some themes have it and some dont..

and if not, then how do i find only the themes that do support the creation of groups?

i like the Speed theme but its impossible for new people to use… the instructions are ..well there really arent any.