I found three great themes for Blackberry Curve 83xx. Here are those themes and you must install it OTA from your Blackberry. Enjoy!
1. MiniBold
Mini Bold Theme
2. MiniJavelin
Mini Javelin Themes
3. MiniStorm
mini storm theme
There are still more great themes for blackberry. I will give you another if I find the good one. 
Egan Fields
Feb 28. 2010
I must admit I’m impressed by this posting. I love my Blackberry and actually got it for free on http://www.daily-stuff.com !
Charissa Detoma
Apr 05. 2010
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Apr 05. 2010
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Ok Valero
Apr 09. 2010
Wonderful blog, some interesting details. I think 10 of days ago, I have read a similar blog. Does someone know how to track future posts?