There's a major problem in LaTeX bibliography styling/sorting when not using BibTeX.
When using BibTeX, one can specify a \bibliographystyle, but if we're generating our bibliography from plain \bibitem entries, using the \thebibliography command, there's no way of specifying the output style.
Given a main .tex file and a bibliography .tex file (containing only bibitems), the LaTeX-BibitemStyler will go through all the input .tex files of your project, collect the cites in order of appearance, and allow you to generate a new bibliography .tex file while specifying an output style.
PLAIN. ALPHA. Alphabetical order UNSRT. Cite order of appearance
Microsoft .NET Framework is required to run the LaTeX-BibitemStyler.
If you found this useful, please drop me a line! Reviews and suggestions are very welcome!