IIS Rewrite sub domains to sub directories

Hello,
I need help. Below is my rewrite rules, but they are not working (or working incorrectly).
I would like:
xyz.com ==> www.xyz.com/moodle
www.xyz.com ==> www.xyz.com/moodle
cfdep.xyz.com ==> www.xyz.com/dnn
sis.xyz.com ==> www.xyz.com/opensis
uos.xyz.com ==> www.xyz.com/uoc
str.xyz.com ==> www.xyz.com/str
trq.xyz.com ==> www.xyz.com/trq

the only thing that is working is the xxx.xyz.com. Everything is wrong.

xyz.com shows the url in the browser as www.xyz.com/moodle
all other urls (cfdep.xyz.com, etc) gives an error.

Please help,
Greg

Code:

               <rule name="Rewrite 1" stopProcessing="true">
                  <match url="(.*)" />
                     <conditions>
                        <add input="{HTTP_HOST}" pattern="^(www.)?xyz.com$" />
                        <add input="{PATH_INFO}" pattern="^/moodle($|/)" negate="true" />
                     </conditions>
                        <action type="Rewrite" url="moodle/{R:1}" />
               </rule>
               <rule name="Rewrite 2" stopProcessing="true">
                  <match url="(.*)" />
                     <conditions>
                        <add input="{HTTP_HOST}" pattern="^(cfdep.)?xyz.com$" />
                        <add input="{PATH_INFO}" pattern="^/dnn($|/)" negate="true" />
                     </conditions>
                       <action type="Rewrite" url="dnn/{R:1}" />
               </rule>
               <rule name="Rewrite 3" stopProcessing="true">
                  <match url="(.*)" />
                     <conditions>
                        <add input="{HTTP_HOST}" pattern="^(sis.)?xyz.com$" />
                        <add input="{PATH_INFO}" pattern="^/opensis($|/)"  negate="true" />   
                     </conditions>
                       <action type="Rewrite" url="opensis/{R:1}" />
               </rule>
               <rule name="CName to URL - Rewrite" stopProcessing="true">   
                  <match url=".*" />   
                     <conditions>
                        <add input="{HTTP_HOST}" pattern="^(?!www)(.*)\.xyz\.com$" />
                     </conditions>   
                       <action type="Rewrite" url="/{C:1}/{R:0}" />
               </rule>