If you would like a preview of the (forthcoming) new version of WoK, you could log in to Web of Knowledge and click the top right hand corner linkto "Experience the new version with BIOSIS Citation Index® - Web of Science®". There is an orange box on the next screen with a link that says 'Access it now'. This screen also gives details of what's new.
There will be a number of changes but perhaps the most important is a new powerful Google-like searching option, lemmatisation, which involves the database finding different/related forms of a keyword that you have entered e.g. tooth/teeth. A did you mean? spell-checking option is in development.
Furthermore, cited reference data has now been added to the BIOSIS database which will enable a united set of citation data across all the Web of Knowledge databases. As a result, the 'times cited' count of many articles should increase!
I welcome any feedback or questions you may have about the new version.