Yes, SF.net services are all free, don't worry about space there <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) -->, if we manage to make something wrong, SF.net will contact us before doing anything <!-- s;) --><img src="{SMILIES_PATH}/icon_wink.gif" alt=";)" title="Wink" /><!-- s;) -->.
I finally got the time to look at the TortoiseSVN options myself <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) -->, you need to right click on the main source folder (which has the client and server subfolders and all the stuff needed for compiling, etc.), then select the "TortoiseSVN" submenu, then another menu will popup, there's one option that says "Create repository here", if you click it, you'll get asked on the modules name, make sure you use something like "KoraxRPG" or similar, again, if you've got any trouble with it, just ask <!-- s;) --><img src="{SMILIES_PATH}/icon_wink.gif" alt=";)" title="Wink" /><!-- s;) -->.