The forum doesn't help much with searching.
The 'Search This Site' box top-right looks for basic word matches in Post Titles. Not wonderful.
Much better is the Google Search hidden away half-way down the home page.
Also possible to to search the forum directly with advanced search syntax in your browser. For example:
SillyOldDuffer site:model-engineer.co.uk causes your internet search engine to only return hits from model-engineer.co.uk The syntax is standard, works for me with DuckDuckGo, should also be good with Google, Bing and the other usual suspects. By default albums are created 'Public', and there's no need to login to explore them.
Be quick! The forum is about to be replaced, maybe next month. Images in an album that aren't referenced by a post will be lost.
Dave