HI,
I can help you in create a new front-end of you old application keeping the data structure and you information saved.
We can work of 2 ways. One is improvement the actual forms, views or agents, Or create new forms and reports in xPages. xPages could be run in Web browser or inside Notes Standard Client.
This is a reference price, we can establish prices for sub tasks, forms or reports seeking to adapt to your budget
Please, feel free contact to me for talk in detail about the project.