Putting code on the web

I can’t find a suitable solution to show program code on my blog. WordPress screws with my indentation and I can’t make the code collapsable. I uploaded two files to pastebin, but it seems to be down at the moment. I would think that others have this problem also. So, do you have a solution? Please let me know.

Edit: Found it! A great little utility, Code2WordPress, converted my code to HTML for me. Yay!