Thanks for posting this!
I know that some updates were done recently, so here is the updated process:
Use the search function and type in "G/L Register" (click the option under "Reports and Analysis" in your search results), this will open a "G/L Register" pop-up that you can use to search for the general journal you are searching for.
Use the filters to find the journal you are looking for.
You can use the filters to search for the GL register number (if you have it), or the posting date of the general ledger.
There are other options in the filters that you can use to help you find the journal that you are looking for--for example, you can search by User ID, Account no., Account name, Journal batch name or template, Source code, etc. There are a lot of filter options.