I do not want to learn hiragana or katakana. Is that possible?
Most definitely. We can use romaji (using alphabet) so you do not have to learn or work with Japanese characters.

I would like to learn basic Japanese skills for shopping and travelling. How many lessons do I need?
The beginners course is 30 lessons and will cover basic daily conversation. You will learn useful and relevant Japanese conversation skills for shopping, travelling, using public transport, restaurants, post office and banks.

I would like to be able to do business in Japanese. How long would that take? Much depends on your working environment and how frequently you use Japanese in your office. In the past, we have had students pass the Japanese Proficiency Test Level 1 and JETRO business Japanese language exams. You will have to learn kanji and work on vocabulary so it will take at least 2-3 years.