Trouble installing new theme

[candymara]

Hi Everyone,

I installed the theme "Snail" onto my server. Basically I uploaded it into the Themes directory but I can't seem to activate it. Am I missing something? It doesn't appear on the dropdown list of themes to choose from.

I have never used GS until today so I am trying to get my feet wet here. Hopefully I haven't burdened you all with a question you have seen a million times.

Candy