First off for those of you who just want to use it link is here.
When you take a copy it will ask if it can send emails using your account – if you want it to email students when things happen you need to say yes to this.
When you take a copy of the spreadsheet you will also get 4 Forms – you need to find a way to provide all 4 forms to your students and give them access to view the published spreadsheet (for forms File send form or File embed for spreadsheet click file, publish to web – then use the link or embed code). I like embedding them into a webpage/vle but you can simply put up the links if you find that easier.
You also need somewhere students can add files and get links – Google Drive is good, dropbox is another good alternative – for both if you want anonymity you will have to set it so anyone with the link can edit/upload.
Returning to the spreadsheet – there are a number of hidden sheets, you need to click view hidden sheets, “Username and Anonymous name”