Yep! You found a bug! It is fixed on the version of XML::Twig 3.00 that's on my site at www.xmltwig.com.
As a general rule XML::Twig is not really impacted by various versions of Perl, except that after 5.6.0 it can use WeakRefs to gain proper garbage collection. It is impacted by versions of XML::Parser though, and I must say that if I can (if there are no problems with the expat version included in mod_perl) I tend to stick to version 2.27 as XML::Twig was written for it's API, and as it is cleaner Unicode-wise.
BTW If you need a patch for XML::Twig 2.02 please let me know.
