Any proper XML module will do that: XML::Parser (on its way to deprecation except as a low-level layer used by more convenient modules), XML::LibXML, XML::Simple, XML::Smart, XML::Twig, XML::SAX::PurePerl... XML::Parser::Lite is _not_ a real XML parser, it is designed to parse SOAP messages, which only use a subset of the XML recommendation.
As you mention you have problems with spaces in attributes, note that XML parsers are required to normalize attribute values, see The Annotated XML Specification. I don't think that's what your problem is here, but just in case, I thought I'd mention it.
Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
Want more info? How to link
or How to display code and escape characters
are good places to start.