Were those styles in the normal.dot file of your previous version? When
upgrading, Word doesn't delete any data files, so you should be able to copy
your styles from normal.dot to normal.dotm or preferably to a custom
template. (Locate and rename normal.dot so that the two files don't have the
same names; that way, it will be less confusing.)
Usually, if you delete normal.dotm, with Word closed, and then start Word,
you should be getting a normal.dotm file with the factory default settings.
However, I don't think this applies if there is an old normal.dot file
available, in which case Word seems to make a duplicate of that file.
Microsoft Word MVP