I'm not quite sure since I view it from the moderator standpoint which gives me extra options, and I don't know if my ability to delete blogs is the same as yours. When you go to your blog see if there is a pencil icon to the right of the blog title if you move your cursor over it, and if there is you can click on it and it will give you the option to edit/delete it from there.. I can use the test account to see how it appears for bluelighters but I'll see if someone answers it first.
If worst comes to worst just PM myself or another senior staff member (or blogs mod) and we will remove them for you.
Anon --> Support