Please wait at least 36 hours before double posting. I have merged your posts.
Now, to you questions.
A ) That's actually rather simple, but requires a bit of scripting. You have an easy solution here
B ) Well, you just have to raise the SPI factor effect. It's rather low with default skills, but setting it to 100 will make spells stronger as you level up.
As for your last question... do you mean a customizable weapon for which you could add elements?
This post has been edited by Kread-EX: Aug 8 2010, 08:51 AM