Module development and code questions

We have a site at www.scientificblogging.com with the Technorati module made by Khalid Baheyeldin. We use the poormanscron module and that works fine. Ping is enabled. The log shows me that Technorati is updated.

According to the instructions: "A mini calendar is available using the block view if the block view is also set to the Calendar type."

A set the block view to the Calendar type, but no calendar is viewable.

I am trying to get a small calendar to appear on the front page. Sort of like I used to be able to do with the "browse archives" calendar in earlier versions of drupal.

Can it be done? If so, how?

I'm wanting to customize the breadcrumbs for blogs. I've seen a few modules and I'm not sure whether or not they can serve my purposes.

Basically I want to kill the Home >> blogs >> part of the breadcrumb because I want a person's blog to be able to stand alone as their own website (helped in part by the blogtheme module). Right now clicking home or blogs would return them to the main website instead of their own section.

I can hack the module to change the parts of the breadcrumbs I suppose, but is there a way to disable the home button only for blogs?

Trying to write a .install file for a module and I read through here:

http://drupal.org/node/51220

However, I still cannot get my module to create the table I need.
Hoping someone can point me in the right direction.

Here is the code:

<?php
// item_close.install

function item_close_install() {
switch ($GLOBALS['db_type']) {
case 'mysql':
case 'mysqli':
// the {tablename} syntax is so multisite installs can add a
// prefix to the table name as set in the settings.php file
db_query("CREATE TABLE {pm_item_close} (
nid int unsigned NOT NULL default '0',
vid int unsigned NOT NULL default '0',
item_close_date int unsigned NOT NULL default '0',
PRIMARY KEY (vid)
) /*!40100 DEFAULT CHARACTER SET utf8 */;");
break;

case 'pgsql':
db_query("CREATE TABLE {pm_item_close} (
nid serial CHECK (nid >= 0),
vid serial CHECK (vid >= 0),
item_close_date serial CHECK (item_close_date >= 0),
PRIMARY KEY (vid)
)");

// Pgsql requires keys and indexes to be defined separately.
// It's important to name the index as {tablename}_fieldname_idx
// (the trailing _idx!) so update scripts can be written easily
db_query("CREATE INDEX {item_close}_field_name_idx
ON {my_table} (field_name)");

When accessing profile listings (/profile) I get ~50 times this same error message.

Any hints what might cause this?

I run an academic website, and I am trying to figure out what the best way to set-up a searchable (by keyword) reference list. For example: I would like it if a user wants to see all articles related to youth, then they would just type "youth" into the search box, which would then return a list of all the articles where I have identified "youth" as a keyword. Alternatively, the user could go to a page with all the keywords listed and they could browse that way.

Suggestions?

Thank
-e