To upload an image for your profile. Roll the mouse cursor over the welcome message on the top right corner. ( The message looks like: "Howdy, *name"). Once you roll over that, you will see an drop-down box and an option that says "edit your profile". Click on "edit your profile". On the right hand side (you may have to scroll over) of the profile screen is a small box that says "picture". Just click on that box and follow the upload options.
The image that you upload will allow you to crop and size the image. It will automatically change to a small size.
To post in the blog: once you have logged into the website, there are a couple of ways to post. The easiest to to look at the top of the page, where the gray bar appears once your logged in. There is a couple of links. The link that looks like “+ New” will allow a drop box to appear. Once the drop-down box appears, the top option is “Post”. Just simply click on it and it will take you to the “New Post” screen. Write in the Title of the post, then the body of the post, insert any picture you want to add, then click the blue publish to the right side of the screen. And your done. It will create the post in the Blog page.
You can also get their by the dashboard screen. Click the “Post” button on the left side bar, then click ”add New”. From there it will take you to the same screen as the previous method.