Don't just say it doesn't work but describe in detail what is happening and add the following information:
* VirtueMart version
* CSVI version (Latest is not a version number)
* Sample of the file being imported
* Collected debug information
Without this information you won't get a useful answer. If no debug log is attached, you will get a request to post it.
Maximum execution time about to be exceeded. Time passed:26seconds
A well discussed item on the forum. The problem is that the file you are trying to import is larger than CSVI can process in 30 seconds. You will have to either make your import file smaller, increase the execution time on the server, use cron to import the file or get the Pro version. One of these options will do.