Module development and code questions

Is there any Drupal modules or 3rd party scripts available which can set up a price guide that is similar to http://sg.hardwarezone.com/priceguide/info.php?cid=224&id=5886 ?

Like the above link, I want to be able to provide a list of retailers offering a specific product instead of a normal e-commerce website. Any help will be much appreciated!

Warning - about to rant and rave on the following modules:
paypal_framework
paypal_subscription

I have found like 15 different paypal_framework (and Paypal_subscription) patches and installs and modules for drupal 4.7. How do I know which one I should use? Someone should organize and synchronize them all so that newbes like me can find them. (PLEASE!)

First off, WHERE is the Paypal 4.7 Framework? (http://drupal.org/node/66269)

Is this it, or just part?:
http://cvs.drupal.org/viewcvs/drupal/contributions/modules/paypal_framework/

I also see a “paypal_framework.install” on that page is that the FULL install or just a patch for the install? (And why was it hidden deep in the CVS? :))

Below are the patches I think are right. Do you know if they are?

On http://drupal.org/node/62674
I downloaded the "paypal_framework.module.patch (10.2 KB)"
and "Attachment:paypal_framework.install (3.17 KB)"

On http://drupal.org/node/62669
Is it the "Attachment:paypal_subscription.module_0.patch (34.78 KB)"
Or is it the “Attachment:paypal_subscription.module.patch (34.44 KB)”
and the "Attachment:paypal_subscription.install (1.28 KB)"

After many hours with the doc, I believe I have a decent understanding of Drupals' theme system. However, I have yet to find a simple/standard way to control how a field's title and description show up relative to the field itself. Looks to me that the end of the line is always a call to form_render($field) which displays the field as follows:

field title, new line, field content, new line, field description.

Ive heard through some of the posts that i18 and the other modules needed for auto translation do not yet work with Drupal 4.7 (only 4.6.6).

Is there a timetable for the 4.7 upgrade. ?

thanks
firebbug

Maybe this is a dumb question, but what is the best way to go about querying the drupal database in the block hook and displaying the query result. I've been able to generate a list of item titles and either the word object or array, but never the desired content of this database.

Hi,
I want to add my own content-type when user clicks add comment to node link. Any Idea ?
Thank you
:)