Post installation

My site is set up and working...well all except for one thing.
People are not receiving an e-mail with their password or the one-time link. Can anyone help me fix this?

The text beneath the request for user name in the registration screen states: "Your full name or your preferred username; only letters, numbers and spaces are allowed."

Well, I know it accepts periods, so a user name like St. Nicholas will work just fine.

Or will it? Are there any functions where, down the line, having a period in the user name will cause a problem?

Hi.

Im trying to insert some external database driven graph into address.module - ecommerce, so when user clicks on 'address' tab in 'my account', a graph will show up above or below 'Click here to add a new address.'

Two variables are extracted from the external database and to be passed onto a external PHP script (graph.php) to generate the graph.

Is there a module that will allow me to create multiple blocks similar to the "Latest Articles" block, with each block displaying links for articles in different categories? For example, I have three categories w/ sub categories: sports (hockey, baseball), finance (stocks, money), and weather (U.S., Canada). I would like to have a block that displays the latest articles for all of sports, and if possible, another block that displays the latest articles for just hockey. Also, could I mix and match categories / sub categories?

Heres my problem. I installed it, Yay. But now on the homepage... almost every link takes me somewhere, then it says "redirecting" in the website title... and i go back to the index page.

Heres an example, register... http://*.*.com/?q=user/register it doesnt work, redirects me... but if i add a / after register... it works fine. Its like this for all of the links. I managed to make my own account my inserting it into the sql... and things like add new content work... but the administer area doesnt work, just redirects me to that page if i dont add a / after /?q=admin

Would there be a way of having a blog available to one role and another blog only available to another role? Say one blog available to the general public and another group of blogs available to registered members?