Module development and code questions

I have two problems with the image module:
1) what OS permissions should the images folder have? as my hosting is not displaying uploaded images.
2) seems the image module is generating a link with the full URL, but all links work with a relative (base url + url) way.
Thanks in advance.

Andrés

Hello All
I use drupal 4.6 and module "Tables Filter Module"
The internet explorer is not show table create by this module. But FireFox show ok.
How do create table for show in internet explorer????

My organization is hosting a summer camp and we want to set up an online registration system where families can decide which classes they want to take, submit their registration info, and pay the registration fee online. Taking a look at the different modules available, it appears that the best option is to use the ecommerce module and add each class as a "product". This is relatively straightforward, but the problem arises during checkout. I need to capture additional information. For example, a family may have three people who wish to attend the summer camp.

mlm (mailing list manager) doesn't seem to send the subscribe message to an external ezmlm server. Has anybody had any success with it? There is absolutey no documentation on it.

I need to develop a web site which will need to have a right block for navigation where there will be a certain number of links.
I need to add a javascript code to each link so that onMouseOver I will get a popup menu that will give me sub-navigation options.
Is that easily achieavable under drupal? Would I have to write a block module for it and the js on a separate file? How would I integrate the two things and how can I go on about it?

I am writing a custom block that dynamically builds a menu. I want to change the subject/heading/title of the block based on which menu i have loaded.
Note this is NOT hook_block() in a module, this is PHP code in a custom block