SYSVOL and Netlogon no shared nor replicating

I just found that ther SYSVOL and NETLOGON folders are neither shared nor replicating with my FSMO roles holder which is a Windows 2003 Std, so i have to fix before i can go on with my pla to move my domain to windows 2008 functional level.

I found this link http://support.microsoft.com/kb/315457/en-us?wa=wsignin1.0 that explain how to fix it, but i would like to fix the causes of the problem first, may be i wont need the previous procedure if i fix the causes of the problem because the DCs try constantly to replicate each other as showed in my logs in the event 13508 without 13509.

Any ideas