Well I have to say, I'm no computer expert... the very basic HTML I have learned very much on the job by trial and error, so this quick tutorial comes from a very basic computer mind... with this said I may not be able to answer your questions should you have any... sorry!
Let's try to get you started...
So to the left you can see what Ravelry's API code should look like on the blog.
To add it to blogger/BlogSpot you need to access your Ravelry account. Then go to this page... http://www.ravelry.com/about/progressbars. Here you will find a two step process, which for me sounded like a different language and quite difficult to follow. However, after some playing around and talking to fellow Ravelry users in the We Love Process Bars Group, I managed to work out that I needed to do the following;
- Log into Ravelry and finding the process bars page.
- On a separate Web page log in to Blogger and select the blogger layout page.
- Copy and paste the second script from Step 1 and the script from Step 2 directly underneath in the same box.
- press Save.
Below you can see how it actually looks on insertion...
This is different than Ravelry suggested above, but I think that is all about the blogger theme you have working and how that affects certain coding. Not being an expert I have left mine as is, but if you are feeling more adventurous, then there are ways you can adapt the code to suit your needs. You can find this through some Ravelry thread investigation... check out http://www.ravelry.com/wiki/pages/BlogWidgets.
I hope this helps guys... happy knitting!