You could always use something like
Maxthon as your browser to download updates ensnared3...
However, i think you should get IE up and running properly if possible. Try running the system file checker:
Type sfc /scannow in to the 'Run' box (note the space after sfc). This will launch the system file checker. It will scan your system and try to fix any damaged/corrupted files. You might be asked to insert your Windows disk at some point
