Use the following code samples:
BOLD: surround the text you want in bold with [bold] and [/bold]
Example: I want [bold]this text[/bold] to be bold.
Result: I want this text to be bold.
ITALIC: follow the same instructions above, but using [italic] [/italic]
PICTURES: In order to display an image within your post, the image must be hosted on a web server. There are several free hosting services for your images. Here are acouple that you can use: picturaltrail.com – photobucket.com
Once you have your image uploaded or you have found a picture on the internet you want to embed in your post, you can then post your image by right-clicking on your image and selecting "Properties", copying that Address (URL) and then pasting it with the [img] at the beginning and [/img] at the end of the URL tags.