To post your html, javascript,c# and java you should convert special characters to HTML code. as '<' as < and '>' to > and e.t.c..
Add this link Code Converter to iGoogle. This will help you to convert the special characters.
Then add SyntaxHighlighter 3.0.83 new version to customize your code in blogger. But you should know How to configure the syntaxHighlighter in your blogger template.
