All about the Roland Jupiter-series

I just midi dumped the original factory sounds from Vintage Synth 
Explorer to my MKS-80 sound module. Since there were only one sound in 
it originally(#1-1), I did not know what to expect. Well, banks 1-6 
and with the numbers 1-8 work fine. When I get to bank 7, it only 
works with numbers 1-4 so 5-8 are the same generic sound. Bank 8 
doesn't have any new sounds at all except that generic sound. Has 
anyone else ran accross this? Is there another program out there? 
Please help if you can & thanks!