web.config help

Hi, how can i add these rules to my web config without any issues.

My web config
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="Imported Rule 1">
<match url="^(|/)$" ignoreCase="false" />
<action type="Rewrite" url="index.php?url={R:1}" appendQueryString="false" />
</rule>
<rule name="Imported Rule 2">
<match url="^([a-zA-Z0-9_-]+)(|/)$" ignoreCase="false" />
<action type="Rewrite" url="index.php?url={R:1}" appendQueryString="false" />
</rule>
<rule name="Imported Rule 3">
<match url="^(.*)\.htm$" />
<action type="Rewrite" url="{R:1}.php" />
</rule>
<rule name="Imported Rule 4">
<match url="^(|/)$" ignoreCase="false" />
<action type="Rewrite" url="dashboard.html?page={R:1}" appendQueryString="false" />
</rule>
<rule name="Imported Rule 5">
<match url="^/stafflogin/index.php?url=dashboard.html(|/)$" ignoreCase="false" />
<action type="Rewrite" url="/stafflogin/dashboard.html" />
</rule>
<rule name="Imported Rule 6">
<match url="^habbo-imaging/badge/([^/]+)" ignoreCase="false" />
<action type="Rewrite" url="/habbo-imaging/badge.php?badge={R:1}" appendQueryString="false" />
</rule>
<rule name="Imported Rule 7">
<match url="^home/([a-zA-Z0-9_-]+)(|/)$" ignoreCase="false" />
<action type="Rewrite" url="index.php?url=home&user={R:1}" appendQueryString="false" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>

Need add these rules:
RewriteRule ^forum/f([a-zA-Z0-9_-]+)(|/)$ index.php?url=forum&view=category&id=$1
RewriteRule ^forum/thread/([a-zA-Z0-9_-]+)(|/)$ index.php?url=forum&view=thread&id=$1
RewriteRule ^forum/newthread/f([a-zA-Z0-9_-]+)(|/)$ index.php?url=forum&view=newthread&id=$1