Trouble making dynamics links
Your link code worked for me when I tried it on a random page so it's hard to tell what could be wrong from the information you provided. Generally a better way for creating links in code would be the l function:

&lt;?php print l(t('Add album'), 'node/add/review/' . arg(1)); ?&gt;


Drupal will handle the use of admin overlay automatically if it's enabled. Another thing I noticed is that adding arg(1) for nid at the end of node creation pages serves no purpose generally. If it's used by a module or custom code for something then it's a different story though.