VIE-nah-moy-nen
The first syllable sounds like VINE.
You can also type it in here to hear it (then click Kuutele puhe):
http://www.mikropuhe.com/demo.asp?f=680225820943
*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*Counting down the days until I go to Spain