[TxMt] hyperlink helper problem

Most of the Hyperlink Helper commands in that bundle do not work for me. For example, if I run the 'Look up selection on wikipedia and link' command, I get:

---- sh: : command not found /Library/Application Support/TextMate/Support/lib/ui.rb:297:in /bin/bash: -c: line 0: unexpected EOF while looking for matching `'' /bin/bash: -c: line 2: syntax error: unexpected end of filenew' from /Library/Application Support/TextMate/Support/lib/ui.rb:20:in /bin/bash: -c: line 0: unexpected EOF while looking for matching `'' /bin/bash: -c: line 2: syntax error: unexpected end of filecall_with_progress' from /tmp/temp_textmate.Wzo5AT:63:in ----

What do I need to do to fix this?

Thanks, Christopher