I've run into this when I tried to access my college's website. The program they used for class assignments, homework, etc., was not compatible with Safari or the iPad (or both). There is no solution when the page gets truncated like this - cause its not you, it's the way the site is designed. The only thing to do is to contact the site webmaster (or the IT folk of the business you are accessing) and see if they can make it iPad-compatible.
Marilyn