Find yourself a host for your pictures.
I have 50mb worth of space with my ISP which I use for this. When I post pictures I just upload the pictures with a ftp client to my webspace.
Then you just use img tags, like this:
[img]http://my.imagehost.com/nameofpicture.jpg[*img]
Replace the "*" in [*img] with a "/" and your good to go.
