As long as the name on the forms match that on the passport then you're fine so make sure you inform the KCC as gabam says.
On another note pertaining to the subject of spelling issues. Things like civil documents will commonly have spelling issues. For instance my marriage and divorce certificate are all misspelt by the authorities that issued then 6 years ago but its nothing to lose sleep over as long as you have the originals because only the person(s) mentioned on the form will have possession of the originals and not any other person and this is common knowledge.
Besides its not your or my fault if the people issuing the documents didn't spell them properly especially if it was a few years ago before you knew you had been selected for the DV. I mean when I was born in 1980 how was I supposed to know 32 years down that I'd be going for a DV and my father's name on the original birth certificate had an 'a' in it instead of an 'e?' These are official government records and can't be changed and the consular officer won't stick a gun to your head and ask "why is this different?" More so in Africa these things are common issues.
I've also not read of any hard and fast rule that says the original documents which were not prepared by us had to have like for like spelling. The things which we will be preparing like I-134, bank statements, police certificates, medicals i.e. documents to prepare after DV selection have our direct input so we have to ensure these are correct.
The consular officer will want to see the originals - in some cases I've heard they don't even ask for something like a divorce certificate (if you applied as a single applicant) and if you're worried then simply get an affidavit signed by a lawyer attesting to the variance in the spelling.
According to my research and from what I have read from my friends on the forum the key documents/originals that they will want to see are:
- Passport
- High School Diploma/School Leaving Certificate (my friend told me to take this as it shows them the total timeframe of your school education).
- Work experience of 2 years (under O Net) in the place of no high school diploma.
- Bank statements (I've heard on most occasions they don't even bother looking at this).
- Police certificates (this is to tell them you have a clean history).
- Medical report in your sealed envelope.