The short answer is, when specifying proxy, supply the PORT in the url, like so:

use SOAP::Lite +autodispatch =>
   uri => 'http://www.soaplite.com/Temperatures',
   proxy => 'http://services.soaplite.com:PORT/temper.cgi';
[download]

You should goread SOAP::Lite Guide. It has complete examples of both clients and servers. Normally Cookbook should be read after this guide.