This site runs on "Simple Machines Forum" software. The official "User Manual for Members" can be found via this link (http://wiki.simplemachines.org/smf/Category:As_a_regular_user)
That is a bit of a 'walkthrough', so in addition to that here's a list of Questions that have been Frequently Asked on this particular forum.
Note: the SMF-user manual is available in languages other than English. If you are a non-native English speaker, you will probably be re-directed to a version that is native to you, and/or the native language of the country you are currently posting from.
Feel free to ask in this section of our board if something is not clear to you. We'll do our best to make this a safe and pleasant board for you to participate in.
How to Use the "Quote" Function (http://outofthefog.net/C-PTSD/forum/index.php?topic=211.msg1710#msg1710) and Manual: How to use the "quote"-function? (http://outofthefog.net/C-PTSD/forum/index.php?topic=3490.msg20592#msg20592)
Forgotten or Lost Password? (http://outofthefog.net/C-PTSD/forum/index.php?topic=201.msg1572#msg1572)
Personal Messages (PMs) (http://outofthefog.net/C-PTSD/forum/index.php?topic=589.msg4287#msg4287) and Checking Your Personal Messages (http://outofthefog.net/C-PTSD/forum/index.php?topic=2023.msg12332#msg12332)
Abbreviations... (http://outofthefog.net/C-PTSD/forum/index.php?topic=2237.msg13924#msg13924) and Acronymns? (http://outofthefog.net/C-PTSD/forum/index.php?topic=1232.msg8114#msg8114)