Hi all i have questions here to ask.

1) In the bottom left corner of Limewire, where the conection status icon is, there is a small erth like icon.Now i know its got something to do with a fire, but what i need to know is, some times its just the plain earth icon, and when i hover over it it says Limewire has not detected a fire wall.And sometimes it will have a wall over it indacating that it is behind a fire wall.
Now is it good to have it saying "not detected a fire wall" or behind a fire wall? I do have a fire wall, im using the one built in with Windows Vista Home premium.

2) How good, how safe is it, to use the torrent thing in Limewire?
Is it just as easy/same as using other torrent programs?
I have used it once and it seems ok, but i just want to know from other users what they think of it.

Cheers all.
Jme.