Herpes
zosterChickenpox - vaccine
Herpes zoster
Herpes zoster (shingles) - close-up of lesion
Herpes zoster (shingles) on the arm
Herpes zoster (shingles) on the back
Herpes zoster (shingles) on the chest
Herpes zoster (shingles) on the hand
Herpes zoster (shingles) on the hand and fingers
Herpes zoster (shingles) on the neck and cheek
Herpes zoster (shingles), disseminated
Zoster vaccine live (shingles) can occur anywhere on the body. I have never seen a case involving the genital area, but I'm sure it can happen. If it does, probably it is not transmissible sexually. That's because most people either had chickenpox, which is caused by the same virus, or have been immunized. Therefore, most people are immune to a new infection.
As to telling shingles from genital herpes, you can read up on genital herpes symptoms, for example at www.ashastd.org or www.metrokc.gov/health/apu/std. In contrast to the recurrent outbreaks of genital herpes that usually are pretty mild, shingles tends to be more extensive (but still only one side of the body's midline), more painful, and takes longer to clear up (usually 2-4 weeks). And shingles usually doesn't recur, whereas herpes outbreaks due to HSV-2 typically reappear 3-6 times a year. If you are having recurrent blister-like lesions or sores of the genital area, almost certainly it is genital herpes, not shingles.
Finally, you are asking the most basic questions about genital warts and HPV infection. Genital warts are not dangerous, but they are an STD and are easily transmitted to sex partners. See the same websites I mentioned above to learn more.
Finally, if you have genital sores or bumps of any kind and have not had professional care, go see a health care provider. Don't try to figure it out by searching online or asking further questions on this or any other forum. If you don't have a regular provider, your local health department STD clinic would be a good choice; or a family planning clinic like Planned Parenthood.
Good luck-- HHH, MD