So it appears that the author is happy about modifications and redistribution, and probably has it in his own interpretation of freeware.
..
from the excerpt you provided, i think that text is quite clear already.
I disagree. Where does the author say that you may modify it? I don't think the term
> You can use it in your commercial projects.can be interpreted as "you are allowed to distribute modifications". It might be his intention, but it's not written down.
I too recommend to ask the author to relicense the package under BSD or LGPL. He should also be asked to put the license in a file called "LICENSE" in the package, not only on the homepage.
Willi