How to not show Messenger display name in wl mail

I colorize my messenger display name by using Messenger Plus! Live (an add-on
for Windows Live Messenger) but that add-on add some bbcodes to the names to
format them and those codes appear in wl mail's right top corner because wl
mail cannot interpret those codes. And that causes a long and ugly name like
·#[a=23][c=28]Ahmet Güneş[/c][/a]·#·$39.

I searched this discussion board about it and found that if I go to
Options>Compose>Edit in wl mail and set a First Name and Last Name, it will
appear at that corner instead of my messenger display name. However I tried
that but it doesn't work. Anyone who knows how to do it because I want to
make my display name colorful, bold etc. in messenger .