Sorry for not posting for so long;I had my board exams and was busy studying
Well I found the solution ,if you are still interested:
n-gage does not have enough free memory to decompress the software. so you have to unpack your application and place the contents of the system file it extracts into the systen folder and the one in the documents folder in the documents folder of the memory card
A software I found out is
unmakesis
*www.atz-soft.com/unmakesis.html
I used it to unpack avantgo and oxford english pro dictionary both are working fine ,though avantgo's installation is a bit complicated you would have no trouble in in installing the dictionary in your phone.
Additionally you would need a a dictionary viewer like msdict to view your dictionary ."
Msdict 1.30" is the compatible version for n-gage.
I recommed installing the msdict first from:
*www.mobi-systems.com/products.asp?PlatformName=SymbianOS
Hope this post will benifit you and other n-gage users.
ps:I saw what bad_bad_man did in the forum and was shocked. Though i dont post often ,I regularly log on to the forum and am greatly thankful to the forum users for the knowledgeful threads they start