Chinese grammar / problems

can anybody suggest me a helpful book to catch up the chinese grammar ??
I am using FarEast 1+2 books, but I think they don’t use any logial system.
(well, is there 1 anyway ??)
I still have huge problems to construct a sentence in the right word order,
is that normal after around 8 months od studying ??
Is there any great internet side, who have detailed information about the grammar ??

Try this:

Basic Chinese Grammar and Sentence Patterns (Paperback)
by Mabel Lee (Author), A. D. Syrokomla-Stefanowska (Author)

I think I have a used copy at home that I might be willing to part with. (Taipei) I remember it being a useful book.