SDK updation

Hi all,
I am using androidpdf since one year now i have to update its sdk from the older one, older sdk was customised according to my requirements. I have acheived this by modifying code in pakage files of sdk but now files from pakage pdfex and view are not visible and accessible, also many other files from other pakages are missing. I want to know how can i access of customise my code for those files.
Any type of help will be apreciated.
Thanx

Since version 2.8.3 the pdfex classes are deprecated, you should use the ones under com.radaee.view..

You should modify the listeners and implementation accordingly

Well thanx for your reply but can you refer some documentation except that java docs so that i can get better understandings that where i have to make exact changes..... ?