This is a sample manifest file to provide XP styles in VB applications:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 
<assembly 
   xmlns="urn:schemas-microsoft-com:asm.v1" 
   manifestVersion="1.0">
   <assemblyIdentity 
      type="win32" 
      processorArchitecture="*" 
      version="6.0.0.0"
      name="test"
   /> 
   <description>Enter your Description Here</description>
   <dependency> 
      <dependentAssembly> 
         <assemblyIdentity 
            type="win32"
            name="Microsoft.Windows.Common-Controls" 
            version="6.0.0.0" 
            language="*"
            processorArchitecture="*" 
            publicKeyToken="6595b64144ccf1df"
         />
      </dependentAssembly> 
   </dependency> 
</assembly>
Hit Counter