Been using forums for 8 years. Gotcha. 

There is a link for every post. It says "Permalink", it is in the upper right portion of each post. Right click it, copy the link, (or open it and copy the address bar url) then link it in the post. What I would suggest, just to save you a little time, is to quote my posts to see how they are broken down to see the code first hand. Once you have the quote just add the additional characters which are:

[quote] 
[url=http://www.roleplayerguild.com/posts/39134]Kajita Serena ~ Mizukage[/url]
[url=http://www.roleplayerguild.com/posts/38455]Hatsu Zahard ~ 5 Tails (Incomplete)[/url]
[/quote]

Just like that. :0

So it now would be like this:Current Line-Up is as Follows:
[quote]
[b]Leaf Village:[/b]
[1][url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=1#post-20248]Aiko Uzumaki - Genin[/url]
[2][url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=1#post-20056]Kota Uchiha - Genin[/url]
[url=http://www.roleplayerguild.com/posts/30348] Sharaiyu Shyzu - Genin[/url]

[url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=2#post-21713]Ria Uchiha - Jonin[/url]
[S2][url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=1#post-20239]Kokai Ekirei - Tokubetsu Jonin[/url]
[url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=16#post-41286]Touzoku Uchiha - Jonin {Jonin}[/url] 

[b]Stone Village:[/b]
[1][url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=2#post-21834]Kii - Genin[/url]
[1][url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=2#post-22198]Ryou Hozuki - Genin[/url]
[1][url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=3#post-22780]Shira Aburame - Genin[/url]

[b]Sand Village:[/b]
[1][url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=4#post-26581]Daisuke Fukui - Genin[/url]
[1][url=http://www.roleplayerguild.com/posts/32741]Tamiko Mai Adachi - Genin[/url]
[1][url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=12#post-35949]Saino Haven - Genin[/url]

[S1][url=http://www.roleplayerguild.com/posts/30807]Saiyaka Sandeiyoshi - Tokubetsu Jonin[/url]

[b]Amegakaure[/b]
[url=http://www.roleplayerguild.com/posts/42751]Maiko Azzori - Genin[/url]

[b]Kumogakure[/b]
[url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=23#post-43741]Anko Hyuga[/url]

[b]Land of Iron[/b]
[url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=26#post-45713]Nakarai Yuuto[/url]

[b]Missing Nin:[/b]
[url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=2#post-22036]Kai Yatoma {Leaf}[/url]
[url=http://www.roleplayerguild.com/posts/30348]Marashi shimoto {Iwagakure ~ Zetsu}[/url]
[url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=11#post-34835]Tesla Arykasa {Iwagakure}[/url]
------------------------------------------------------------

[b]Jinchuriki:[/b]
Shukaku/One-Tails - [url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=4#post-26581]Daisuke Fukui[/url]
Matatabi/Two-Tails - [url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=1#post-20056]Kota Uchiha[/url]
Isobu/Three-Tails - Open
Son Goku/Four-Tails - Open
Kokuo/Five-Tails - Reserved
Saiken/Six-Tails - Open
Chomei/Seven-Tails - [url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=3#post-22780]Shira Aburame[/url]
Gyuki/Eight-Tails - [url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=2#post-22036]Kai Yatoma[/url]
Kurama/Nine-Tails - [url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=1#post-20248]Aiko Uzumaki[/url]

------------------------------------------------------------

Hokage(Konohagakure) - [url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=3#post-22780]Oda Uchiha[/url]
Tsuchikage(Iwagakure) - [url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=21#post-43132]Akaritori Asaborake[/url] 
Mizukage(Kirigakure) - [url=http://www.roleplayerguild.com/posts/39134]Kajita Serena[/url]
Raikage(Kumogakure) - [url=http://www.roleplayerguild.com/topics/2102/posts/ooc?page=9#post-33862]Atlas "A" Hakumo[/url]
Kazekage(Sunagakure) - Open

------------------------------------------------------------
[/quote]