Installed, but error in blog

[studentdebt.ca]

Hi! I sure could use some help here! I think it might be an error in my settings during install. Serendipity installed... but I notice an error in the QuickJump section:

Warning: Invalid argument supplied for foreach() in /home/studentd/public_html/blog/serendipity_functions.inc.php on line 328

Also: How do I post? I do not see a button for administration to post.. is there another file I need to access to post?

The web page is: http://studentdebt.ca/blog/index.php

server info:

Operation System Linux
Apache Version 1.3.29 (Unix)
Kernel Version 2.4.21-HN-1.2
Perl Version 5.8.1
PHP Version 4.3.4
MySQL Version 4.0.15-standard

Any help would be appreciated. Also, can Serendipity be modified after install to include embed function (I initially stated no for this option)?

thanks!