Install New Module over Old?

Hi, I am upgrading from 1.5 to 1.7 with estore. I had a number of Hot Joomla modules and plugins installed with 1.5 and I used SPUpgrade to upgrade to 1.7. Not sure that SPU transferred these modules, and now after installing a number of your new 1.7 modules, I read [from another vendor's module] instructions that you should uninstall old modules prior to installing new in order to get all new changes working correctly. Is this recommended with all Hot Joomla Modules and plugins as well?. I tried to go to each module to see what version is installed, but can not find version numbers so now a bit concerned that I might not have correct one installed.

Must we uninstall prior to installing new 1.7 versions? How can we tell which version we have installed?

thanks

Scott

open xml file located in module directory. 1.6/1.7 versions should begin like this:

<?xml version="1.0" encoding="utf-8"?>
<extension
type="module"
version="1.6.0"

also , you can check <module folder>/language/ en-GB.<module name>.ini file if values have quotes like this:

LABEL="Translation for label"

then it's 1.6/1.7

thanks Ivan