Does not validate

Theme looks great, however it doesn't validate. Here are the errors, I'm investigating further:

This page is not Valid XHTML 1.0 Transitional!

Below are the results of checking this document for XML well-formedness and validity.

1. Error Line 73 column 65: document type does not allow element "div" here; assuming missing "li" start-tag.

...="block-user-0" class="clear-block block block-user">

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2. Error Line 103 column 9: end tag for "li" omitted, but OMITTAG NO was specified.

You may have neglected to close an element, or perhaps you meant to "self-close" an element, that is, ending it with "/>" instead of ">".

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3. Info Line 73 column 6: start tag was here.

4. Error Line 110 column 4: end tag for "br" omitted, but OMITTAG NO was specified.

You may have neglected to close an element, or perhaps you meant to "self-close" an element, that is, ending it with "/>" instead of ">".

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5. Info Line 110 column 0: start tag was here.