IPhone 3G and VPN

I have tried to install a multifactor authenitication application for VPN support, this is needed for full access to mail etc. In the process of it goes through:
1.) Web Launch
2.) Platform detection
3.) Java detection
4.) DOnwload fails asks to manually download Windows Vista/64/XP/Windows

This prevents the download of MultiFactor SecureAuth for the IPHONE.

Any ideas or work arounds.

Mark--