Log-in link in Elgg Header

I purchased a custom log-in link/drop-down plugin from Juipo but it will take a couple days to arrive in my inbox.  In the meantime....I desperately need to place the log-in fields: username and password LOGIN and lost password link in the ELGG header.  I know it's a simple thing, but I can't find a theme that has their header set up this way.  I am a CSS/HTML designer, but a PHP copy and paster.  What do I need to paste?  Thank you!!