It has a 77 link rating on www.sitepopularity.org the only problem is its listed on most of the links as an indian website but its in or was in english, should I buy the domain name and point the traffic to my hosting company?

Also what would be the best script to do this or way to do it so even if they go to www.domain.com/whatever.htm it automatically sends them to my webaddress.

be it a Indian site or whatever ..... a rank that high and you are wondering ?? check back , it may not still be avaialbale :p

77 is not high really. The site ranks based on how many links there is in the search engine. Microsoft as a comparison has a ranking of 36543875

Also what would be the best script to do this or way to do it so even if they go to www.domain.com/whatever.htm it automatically sends them to my webaddress.

Just use <? header('location: http://yoursite.com'); ?> in an index and 404 page for the domain, easiest way i can think of.