My blog is all set up but there are some anomolies that I just cannot sort out

I want to change the title that shows - but cannot find where - the field in the general->settings is blank and I haven't found it hard coded in the .php files anywhere.

On the sidebar - some sections have headings on blue background and others don't - I'd like them all the same!

Any assistance would be gratefully received. Willing to exchange cash or services:
I'm great at proofreading, checking English (I'm also and English teacher) and anything to do with Office programs - document layout, powerpoint, spreadsheets