Namibia in September

Do you have 10 days after you reached WDH or does that include Vic Falls?

http://www.namibian.org/ check here for your travel options, I don't think busses go to Sossulsvlei so you might have to book a tour, from WDH to Sossusvlei it's between 6 - 8 hours by car, I think closer to 8, we had an over night at Mariental so I don't really know.

In general Namibia is a very safe country to travel in due to it's low population, I think I read that it's the second lowest population per square meter after Mongolia, but that means you have to take water for at least 2 days and some food, towns and villages are far apart.

Namibia isn't a low budget destination, close to Sossusvlei you have to pay 100,-- € for a lodge, the further away you get the lower the price, camping is an option and equitment can be rented in WDH, that's why I suggested a tour or maybe you can team up with some people and rent a car with a roof top tent.

You can get the Intercape from Livingstone to Windhoek http://www.intercape.co.za/home/

With regards to visiting Sossusvlei, if you are not renting your own car or teaming up with someone who is, your best bet is a tour. Both of the hostels I stayed in in Windhoek organised camping safaris. Wild dogs safaris was the most common one http://www.wilddog-safaris.com/
Namibia is pretty safe, just the usual being sensible applies. I had no trouble as a solo female traveller. It is not as cheap as other African countries and if you are not willing to camp your costs will shoot up a lot.

Thanks a lot. I'm trying find out information about the visas. Some sources say that Georgian do not need visas, some say that we do. that's makes everything difficult.