APEX

I've spent the last 2 days just trying to get to the apex admin page. I've even de-installed with @apxremov and re-installed with @apxremov to no avail. Interestingly, using the 8888 port results in the "unable to connect" error but substituting 1521 results in a blank page.
Any ideas? Thank you for your assistance.

Here's my db environment while trying to connect with firefox 3.5.8:
SQL> show parameter list

NAME TYPE VALUE
----------- listener_networks string
local_listener string LISTENER_xxx
remote_listener string
SQL>

SQL> select * from v$version;

BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production

SQL> select dbms_xdb.gethttpport() FROM dual;

DBMS_XDB.GETHTTPPORT()
8888