When I view the tex-file in Techexplorer for Maple, everything seems to be ok. I have asked the Maple-support what is going wrong and what to do to fix the problem, but they have not answered me. I would appreciate very much if some of you could give me some good advice what to do whith this LaTeX problem. It's very hard to guess what's wrong from the information you provided. Techexplorer for Maple is not very useful for checking for LaTeX errors - it simply ignores most formatting commands.
Many versions are available, including some free ones.
Most journals that accept articles in LaTeX have particular formats that they want the authors to use. It's quite possible that there may be some incompatibility between their .sty file and maple2e.sty. Again, it's hard to diagnose this kind of thing without more details. For some time now I have been able to include Maple input and output in my LaTeX files. If you want, send me all necessary files with your paper and I will see where the problem is.