Modifying the citation style


I’m writing a paper and need a specific format for bibliography style and also how the actual citation appears in the text.
I have attached a picture of how the citation should appear in the text when it is a single reference, two references and multiple references in a specific order. The bibliography style should look like the second picture attached.
I have created my own style using “Export Filter Editor” but when I try to load it into jabref (OpenOffice->select style->XXXX.jstyle) nothing seems to be altered in the entry editor nor the word document.

Thanks in advance!!