I am new to Constant Content and am enjoying the learning curve! I had an article rejected today and one of the issues (although I freely admit there were proofing mistakes

Would it be prudent for me to err on the side of caution and set my spellchecker to US English for CC articles in future?
Also I was admonished for the use of the word "noughties", which was referred to as a "joke term". The word is in common usage here in the UK (even in respected broadsheet publications such as the Telegraph - http://www.telegraph.co.uk/culture/6466 ... hties.html) should I therefore assume that this is not the case across the English speaking world? How do I check which words are acceptable and which are not, can anyone offer me a good rule of thumb to go by in future?
Any guidance would be greatly appreciated.