Module development and code questions

How do I commit HEAD branch with files that are currently in DRUPAL-5 branch?

I'm brand new to Drupal, but I've been making pretty decent on a module by reading through examples and the API documentation. However, I'm having an issue that form validation that I just cannot figure out. Basically, according to everything I've read, a form_name_validate function should automatically validate any forms named form_name (unless, of course, it's overridden). However, this isn't happening. Here's a snippet my code:

function ssh_page() {
$output = '';
$host_options = array(
'server1' => t('server1'),
'server2' => t('server2'),
);
$form['host_select'] = array(
'#type' => 'fieldset',
'#title' => t('SSH Server Selection'),
'#tree' => TRUE,
);
$form['host_select']['hostname'] = array(
'#type' => 'select',
'#title' => t('Hostname'),
'#default_value' => variable_get('hostname', ''),
'#options' => $host_options,
'#required' => TRUE,
'#description' => t('SSH Server name.'),
);
$form['host_select']['port'] = array(
'#type' => 'textfield',
'#title' => t('Port'),
'#default_value' => variable_get('port', '22'),
'#size' => 5,
'#maxlength' => '5',
'#required' => TRUE,
'#description' => t('SSH Server port.'),
);
$form['host_select']['submit'] = array(
'#type' => 'submit',
'#value' => t('Connect'),
);
$output = drupal_get_form('ssh_host_form', $form);

You should use drupal_get_path_alias instead and remember to always test your modules and code as a anonymous user too.

I have new assignment which precludes much Drupal development for a while. If anyone is interested in taking over the userreview module, please let me know.
Thanks
dado

this number is defined as decimal(10,2) in mysql. it is declared like this in the form

   $form['cpm'] = array(
     '#type'          => 'textfield',
     '#title'         => t('Cost per month'),
     '#default_value' => $node->cpm,
     '#maxlength'     => 6,
     '#required'      => FALSE,
     '#size'          => 6,
     '#weight'        => 3
   );

in validate, i have

I've just installed the Import/Export module nad when I select it from the menu I get the following error:

Fatal error: Call to undefined function: form_select() in /home/southee/public_html/Drupal/modules/import_export/import_export.module on line 67

Any ideas what is causing this?

Cheers

Mark