Sebastien,
I went to the NI Technical Support site (www.ni.com/support) and used the "Browse/Search by Technical Resource" option to search for "+labview +simulink" (without the quotes) and I found several hits that should get you pointed in the right direction.
I recommend that whenever you have LabVIEW questions in the future you post to the "LabVIEW General" category instead of the "Measure" category. This category is for questions pertaining to the National Instruments product "Measure for Windows".
Good luck, and have a nice day.
Darren