It should be there from at least a couple of versions (from v1.37 if I remember correctly) :)
You can simply get rid of it by editing your skin.
If you want you can use my program BSP SkinMaker (you can find it in my sign):
1. Open the skin with the skinmaker (if the skin is in BSZ format you'll be asked to choose the destination folder to unpack the skin)
2. When extracting (if the option is not greyed out) choose to open the Normal Skin. Otherwise if the skin is not in BSZ format, you have to open the skin.ini file with the SkinMaker
3. Once the skin has been opened, click on the white "Version" word (it will appear where the BSplayer 2.00 string is located)
4. Now in the "Display & GUI" toolwindow un-check the Version option
5. Save the skin and if you want it again in BSZ format choose
File -> Create BSZ from this skin (or just press
F11)
Bye