what to see,
It really depends on what you are interested in?.
Let me know and I will be of more use.
Check these two tourist magazines
Lithuania Today or
Vilnius in your pocket
I recommend, the KGB museum in the centre of Vilnius,
The hill of crosses.
They have wonderful churches too. St. Anne's church is my personal favourite façade (Flamboyant Gothic and Brick Gothic styles) and St'Peter's and Pauls is my favourite interior, with over 2000 sculpting inside, a black Jesus and a crystal ship hanging above the aisle.
Vilnoja Sculpture Park Click here
And if you are very religious go see the "Gate of Dawn"
For a very good bar, restaurant and nightclub, i recommend Cozy.
People will be able to speak English in there and you can get lots of info.
My best advise is to stay in the old town, it is more safe and tourist friendly.
I used to live in Vilnius for a few years, the first time I went it was in 1997 for a month just travelling around for a month.
It has changed a lot since then.
P.S. I think you PMed me about this and I never replied, so I put more effort in to this post to redeem myself :)
Obviously I meant "click" Freudian slip or a typo, I will let you decide :)
Also check the TV Tower not much to look at but of great historical importance.
And Vilius Cathedral, it's the centre of the city.
A short walk behind this Cathedral is a castle tower, offering panoramic views of the old town, for a price.