Drupal 7.x

Problem: Installed Drupal7.10 in IFS on iSeries270V5R4. getting error:

Warning: opendir(sites/all/modules/views) [function.opendir]: failed to open dir:
Permission denied in file_scan_directory()
(line 2026 of /www/zendsvr/htdocs/drupal-7.10/includes/file.inc).

I started getting this after attempt to install Modules: views-7.x-3.0-rc3.zip

Everytime I need to login to the drupal.org community I am forced to 'request a new password'. My new password NEVER works and I can only login using the temporary link sent to my email. Is there a way to fix this please?

Hi under the "Account settings" I have added a field for first name and last name. I am trying to access these fields from a view TPL file. i have tried var dumping $GLOBALS['user'] and the field is not stored there. Any help would on how to access these fields from a .tpl file would be great.

Thanks

The only problem I am facing is the imagefield. I can't upgrade it to drupal 7 due to the following error:

Hello all and thanks in advance!
I m gonna build a site using drupal 7.8. I have some knowledge in php but its my first time I am using drupal, so I would like to ask your help regarding some basic functional questions I have :)

1. I want to have 2 tabbed blocks in my first page. One for "log in" and another for "sign up".
To create this blocks:
For "log in" block it s easy: I will use the out of the box functionality as is (removing create new and request password).
For "sign up" block I d like to remove and add some fields.
Is there any way to find inside user.module the fields used for "username","password","email" etc. and try to use them in my own module?
What are the minimum requirements to use these fields? In other words, if I find the name of these fields, can I use only the names on my module, or I have to override a form/function that maybe contains these fields?

2. I want to use these fields, but finally for the submission in db I 'd like to use the default submit functionality. How that could be done?

3.And one last and very newbie question! Forms are implemented using functions or can be stand alone?
So to use an existing form, I have to find in which function it s declared or I have to override only that form?

A callback function has:

...blablabla code that works fine blablabla...
return theme('partecipants', array('partecipants' => $partecipants));

The module hook_theme has: