[plug] Browsers compatable with 'non Linux ones'?

[Daniel]

Hello All,
two instances today where Linux might have filled the requirements except for 
questions over Browser 'compatability' or standards 
- one for online banking [question e-mailed to bank] and
- the other with needing M$IE compatability (java stuff downloaded, but 
unsuccessful installation in Mandrake 8.2)

Is this all possible and I've just been setting up the browsers incorrectly 
or using the wrong ones?

Any thoughts / guidance please?
Thanks,
Daniel.