Hm.... If you need practice with writing hiragana or katakana,
my old Japanese course website has that sort of thing - the links should be pretty obvious. There's also online study of first-term kanji. They're really easy, but there's a few tests that you can practice with. There is also reading practice further down the page, if you want to try applying your kanji recognition skills.
Successive courses have their own pages with increasingly difficult kanji and readings - it's a good resource, and I can provide more links if anyone's interested. Unfortunately, my course didn't use much in the way of worksheets, so I can't help you much more with that.