Salve Coruncani,
About the voting: the aediles will create a cista, which is basically a web page with nothing on it but (for example) :
--------------------------
Collegium Graecum:
Romulus Aurelius Orcus
Alexander Dionysius Hellenos
Abstineo
---------------------------
All Collegia and their candidates will be on this one page and you basically just select which ever candidate you wish. At the end of the page, you will have to type in your voter code, after that just click the send or submit button and it's all over
As for these voter codes, each member is given one when he becomes a member and the censores send each member his or her voter code in a private email prior to any election. You can expect an email with your voter code either today or tomorrow.
I hope that helped
Lupus