Select on the last contribution that was made by clicking on it (a red rectangle will appear) and then click on the Add Text icon in the menu bar.
In the beginning of each contribution, please add the date with the following format: DD/MM/YYYY. Aftwerwards, write your name in brackets and then your contribution! If you have a question, write in bold. A comment or a answer, with the normal font. An example:
05/11/2005 (Name Surname): When will TF2 ESTIS Website start working?
06/11/2005 (Name Surname): Asap!