I have a page that is index.php?article=33 firstly, any way I can make it so that it is /article-title/ by reading from mysql the title of the article? If not, how can I change it to /article/33/

Thanks

URL rewriting is performed in two steps, first the url rewriting itself, where we manage to transform the url outputted by the script, and then, mod_rewrite itself, where we set up some rewriterules to have our new url working.

So I cannot tel about your script without knowing a bit more about it.

What is for sure is, it will be more code changes to go for the following rewriting :

index.php?article=33 => /article-title/

Than this one :

index.php?article=33 => /article-title/33/

As the article=33 GET var suggest the scritp is selecting on IDs. You'd need to change the db settings to perform a select on the title instead.
to be able to use index.php?article=article-title

The second one should be easier to put together, but it depends on your script.

++