I have upgraded from 5.3.2 to 5.4.1.1 seemingly successfully... ie. the upgrade script ran... but I have issues :<

First, the sitemap did not display and returned a "page not found". On intuition, I disabled the Cache and the sitemap displayed. Great.

The sitemap displays the homepage and the first level of the tree. the Left-click menu works well, however, when I click the + symbol to the expand a node, I get an in-page popup "Page Not Found
No page could be found at this address. " but the "X" and "Close" buttons do not work and I need to refresh the page.

Additionally, when I attempt to add a new page, I get an SQL error:
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Fatal error: Uncaught exception 'ADODB_Exception' with message 'mysql error: [1062: Duplicate entry '2-184' for key 'PRIMARY'] in EXECUTE("insert into CollectionVersionBlockStyles (cID, cvID, bID, arHandle, csrID) values ('184', '2', '2', 'Header Nav', '0')") ' in /public_html/concrete/libraries/3rdparty/adodb/adodb-exceptions.inc.php:78 Stack trace: #0 /public_html/concrete/libraries/3rdparty/adodb/adodb.inc.php(1037): adodb_throw('mysql', 'EXECUTE', 1062, 'Duplicate entry...', 'insert into Col...', false, Object(ADODB_mysql)) #1 /public_html/concrete/libraries/3rdparty/adodb/adodb.inc.php(993): ADOConnection->_Execute('insert into Col...') #2 [internal function]: ADOConnection->Execute('insert into Col...', Array) #3 /public_html/concrete/libraries/database.php(73): call_user_func_array(Array, Array) #4 /public_html/concrete/models/block.php(404): Database->__cal in /public_html/concrete/libraries/3rdparty/adodb/adodb-exceptions.inc.php on line 78
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Thoughts? Suggestions?

Thanks for your time!