Although it is technically possible to repair the snapshot chain, it actually depends on how much data was changed on the base disk while it was in use, and how lucky you are. Please provide an overview of the files you have (the output of ls -lisa from the command line), and attach all the .vmdk descriptor files (compressed in a .zip file) to a reply post. In addition to this let me know how much free disk space you have on the datasatore(s) to see whether it is possible to create a clone.
André