Am gonna walk you into how to achieve deployment of maven site from  a windows XP machine to a Redhat box, assuming you already have installed maven2 and the know-how to execute commands.
These are the stuffs which you need to perform:
1. Configure your POM.xml by adding the distribution management tag:
 < distributionmanagement>
           < site >
             < id > redhatServer < /id >
             < url > scp://HOST /var/www/html/site < /url >
           </site >
  < /distributionmanagement >
Note: HOST is the ip address to your webserver.
The id element must be a unique name to represent your site.
The url element must point to the location on your remote server where you want to deploy your site. Do note that scp:// is prefixed , this specifies that we are using ssh for tansfer.
2. Edit your settings.xml file ,which should be located under C:\Documents and Settings\YOUR_USERNAME\.m2  , by adding the following:
< server >
     < id > redhatServer < /id >
     < username > USERNAME_ON_REMOTE_SERVER < /username >
     < password > PASSWORD_ON_REMOTE_SERVER < /password >
     < filePermissions > 664 < /filePermissions >
     < directoryPermissions > 775 < /directoryPermissions >
 < /server >
 < /servers >
USERNAME_ON_REMOTE_SERVER and PASSWORD_ON_REMOTE_SERVER should correspond to your username and password on the remote server (RedHat box).
3. Run    mvn site site:deploy
This should now start creating your site and deploying it to your remote server.
4. If you get a nagging prompt that keeps coming like the following :
The authenticity of host '10.206.14.48' can't be established.
RSA key fingerprint is 14:93:e7:25:e5:cb:fe:d9:8b:3f
:c2:81:84:9f:b5:15. 
Are you sure you want to continue connecting? (yes/no): 
Then all you need to do is create a directory called .ssh  under C:\Documents and Settings\YOUR_USERNAME\   .
You would require to use the mkdir    .shh 
Thats all that is required to perform the site deploy, hope it will help you out . I know this post is going to be boring for my not so techie readers :).