I am reluctant to approve this question because it clearly is not a perl question. However, why not ask it in the CB? Also, it would be helpful if you created a user name, and then people could /msg you directly.

That said, I am having difficultly replicating your problem. Your script and example invocation work fine for me under both ksh and bash. However, there will be a problem if you call Log with * in the argument:

Log "Hello *"
[download]

To avoid that, simply put $message in quotes:

...
    echo `date` "$message"
...
[download]