xml-rpc send request

[eluser]alexaaaaaaaaaa[/eluser]
Hi, i have a problem sending requests via xml-rpc, the documentation about xml-rpc on codeigniter is very poor.

Here's a egs of sending request.

<GovTalkMessage xsichemaLocation="http://www.govtalk.gov.uk/CM/envelope http://xmlgw.companieshouse.gov.uk/v1-0/...h-v2-0.xsd">
<EnvelopeVersion>1.0</EnvelopeVersion>
−
&lt;Header&gt;
−
<MessageDetails>
<Class>NameSearch</Class>
<Qualifier>request</Qualifier>
<TransactionID>1</TransactionID>
</MessageDetails>
−
<SenderDetails>
−
<IDAuthentication>
<SenderID>????????????????????????????????</SenderID>
−
<Authentication>
<Method>CHMD5</Method>
<Value>????????????????????????????????</Value>
</Authentication>
</IDAuthentication>
</SenderDetails>
&lt;/Header&gt;
−
<GovTalkDetails>
<Keys/>
</GovTalkDetails>
−
&lt;Body&gt;
−
<NameSearchRequest xsi:noNamespaceSchemaLocation="http://xmlgw.companieshouse.gov.uk/v1-0/schema/NameSearch.xsd">
<CompanyName>Test Company</CompanyName>
<DataSet>LIVE</DataSet>
<SearchRows>20</SearchRows>
</NameSearchRequest>
&lt;/Body&gt;
</GovTalkMessage>

Can someone help me? all i want is to know how to do it a example will be great.
Thanks in advance.