I hadnt seen this here but found this at xda so I take no credit for this....
http://forum.xda-developers.com/showthread.php?t=572270
It makes your zoom bar work as a scroll bar...It works on almost everything and doesnt mess with the zoom in the proper apps.....
If this is a duplicate mods please delete...
update: Also this cab is uninstallable... It is extremely small and dont cause any ill effects, so no biggie IMO if ya dont like it..... Just dont use it..lol ya wont even know its there....