How do I install the samsung s5230?

Download theme.
Unzip file.
1. Before installation of any updatings keep original files with expansion *.dat, or make a system backup copy.
2. All updatings instal on "the pure" version of the program (since many are incompatible among themselves).
3. For installation replace original files *.dat in a folder with the established program on downloaded here. Reboot.

Ok great thanks but I have another question about what program I use to?

If you do not know how to connect your PC with your device. Here program.Download Microsoft ActiveSync 4.5

Link working, I checked. You have installed SPB Mobile Shell 3?