Validation failing due to Timthumb

Im using timthumb on this page and apparently it is causing my validation XHTML Strict to fail, anything I can do to fix it? Thanks

There are various errors a lot to do with unescaped ampersands ‘&’ character in the URLs you’d need to change them to entities or something. Also you have LI list elements missing, missing form action and a few other items. Other than that there isn’t much else to fix.